| amentaceous | (adjective) (of plants) bearing or characterized by aments or catkins | Synonyms: amentiferous |
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| antacid | (adjective) acting to neutralize acid (especially in the stomach) | - |
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| (noun) an agent that counteracts or neutralizes acidity (especially in the stomach) | Synonyms: alkaliser, alkalizer, antiacid, gastric antacid |
| atactic | (adjective) lacking motor coordination; marked or caused by ataxia | Synonyms: ataxic |
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| attach | (verb) become attached | - |
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| (verb) cause to be attached | - |
| (verb) be attached; be in contact with | - |
| (verb) take temporary possession of as a security, by legal authority | Synonyms: confiscate, impound, seize, sequester |
| (verb) create social or emotional ties | Synonyms: bind, bond, tie |
| attachable | (adjective) capable of being fastened or added to something else | - |
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| attache | (noun) a shallow and rectangular briefcase | Synonyms: attache case |
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| (noun) a specialist assigned to the staff of a diplomatic mission | - |
| attached | (adjective) associated in an exclusive sexual relationship | Synonyms: committed |
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| (adjective) used of buildings joined by common sidewalls | - |
| (adjective) fond and affectionate | - |
| (adjective) being joined in close association | Synonyms: affiliated, connected |
| attachment | (noun) the act of fastening things together | Synonyms: fastening |
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| (noun) the act of attaching or affixing something | Synonyms: affixation |
| (noun) faithful support for a cause or political party or religion | Synonyms: adherence, adhesion |
| (noun) a supplementary part or accessory | - |
| (noun) a connection that fastens things together | Synonyms: bond |
| (noun) a writ authorizing the seizure of property that may be needed for the payment of a judgment in a judicial proceeding | - |
| (noun) a feeling of affection for a person or an institution | Synonyms: fond regard |
| attack | (noun) (military) an offensive against an enemy (using weapons) | Synonyms: onrush, onset, onslaught |
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| (noun) a decisive manner of beginning a musical tone or phrase | Synonyms: tone-beginning |
| (noun) the act of attacking | Synonyms: attempt |
| (noun) ideas or actions intended to deal with a problem or situation | Synonyms: approach, plan of attack |
| (noun) an offensive move in a sport or game | - |
| (noun) strong criticism | - |
| (noun) intense adverse criticism | Synonyms: blast, fire, flack, flak |
| (noun) the onset of a corrosive or destructive process (as by a chemical agent) | - |
| (noun) a sudden occurrence of an uncontrollable condition | - |
| (verb) begin to injure | - |
| (verb) set to work upon; turn one's energies vigorously to a task | - |
| (verb) attack in speech or writing | Synonyms: assail, assault, lash out, round, snipe |
| (verb) launch an attack or assault on; begin hostilities or start warfare with | Synonyms: assail |
| (verb) take the initiative and go on the offensive | Synonyms: aggress |
| (verb) attack someone physically or emotionally | Synonyms: assail, assault, set on |
| attacker | (noun) someone who attacks | Synonyms: aggressor, assailant, assaulter |
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| attacking | (adjective) disposed to attack | Synonyms: assaultive |
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| autacoid | (noun) any physiologically active internal secretion especially one of uncertain classification | Synonyms: autocoid |
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| autacoidal | (adjective) of or relating to an autacoid | - |
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| bespectacled | (adjective) wearing, or having the face adorned with, eyeglasses or an eyeglass | Synonyms: monocled, spectacled |
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| bioattack | (noun) the use of bacteria or viruses or toxins to destroy men and animals or food | Synonyms: biologic attack, biological attack, biological warfare, BW |
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| butacaine | (noun) a white crystalline ester that is applied to mucous membranes as a local anesthetic | Synonyms: butacaine sulfate |
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| catacaustic | (noun) a caustic curve formed by light reflecting from a curved surface. | - |
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| catachresis | (noun) strained or paradoxical use of words either in error (as `blatant' to mean `flagrant') or deliberately (as in a mixed metaphor: `blind mouths') | - |
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| catachrestic | (adjective) constituting or characterized by or given to catachresis | Synonyms: catachrestical |
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| catachrestical | (adjective) constituting or characterized by or given to catachresis | Synonyms: catachrestic |
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| cataclinal | (adjective) of valleys and rivers; running in the direction of the dip in surrounding rock strata | - |
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| cataclysm | (noun) an event resulting in great loss and misfortune | Synonyms: calamity, catastrophe, disaster, tragedy |
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| (noun) a sudden violent change in the earth's surface | Synonyms: catastrophe |
| cataclysmal | (adjective) severely destructive | Synonyms: cataclysmic |
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| cataclysmic | (adjective) severely destructive | Synonyms: cataclysmal |
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| catacomb | (noun) an underground tunnel with recesses where bodies were buried (as in ancient Rome) | - |
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| catacorner | (adjective) slanted across a polygon on a diagonal line | Synonyms: cata-cornered, cater-cornered, catercorner, catty-corner, catty-cornered, kitty-corner, kitty-cornered |
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| cetacean | (adjective) of or relating to whales and dolphins etc | Synonyms: cetaceous |
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| (noun) large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales, dolphins, porpoises, narwhals | Synonyms: blower, cetacean mammal |
| cetaceous | (adjective) of or relating to whales and dolphins etc | Synonyms: cetacean |
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| chartaceous | (adjective) of or like paper | Synonyms: paperlike, papery |
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| chimneystack | (noun) the part of the chimney that is above the roof; usually has several flues | - |
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| contact | (noun) the act of touching physically | Synonyms: physical contact |
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| (noun) close interaction | - |
| (noun) (electronics) a junction where things (as two electrical conductors) touch or are in physical contact | Synonyms: tangency |
| (noun) a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication | Synonyms: contact lens |
| (noun) a channel for communication between groups | Synonyms: inter-group communication, liaison, link |
| (noun) a communicative interaction | Synonyms: touch |
| (noun) the physical coming together of two or more things | Synonyms: impinging, striking |
| (noun) a person who is in a position to give you special assistance | Synonyms: middleman |
| (noun) the state or condition of touching or of being in immediate proximity | - |
| (verb) be in or establish communication with | Synonyms: get hold of, get through, reach |
| (verb) be in direct physical contact with; make contact | Synonyms: adjoin, meet, touch |
| counterattack | (noun) an attack by a defending force against an attacking enemy force in order to regain lost ground or cut off enemy advance units etc. | Synonyms: countermove |
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| (noun) (chess) an attack that is intended to counter the opponent's advantage in another part of the board | Synonyms: counterplay |
| (verb) make a counterattack | Synonyms: counterstrike |
| cretaceous | (adjective) abounding in chalk | - |
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| crustacean | (adjective) of or belonging to the class Crustacea | Synonyms: crustaceous |
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| (noun) any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton | - |
| crustaceous | (adjective) being or having or resembling a hard crust or shell | - |
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| (adjective) of or belonging to the class Crustacea | Synonyms: crustacean |
| cucurbitaceous | (adjective) of or relating to plants of the family Cucurbitaceae | - |
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| detach | (verb) come to be detached | Synonyms: come away, come off |
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| (verb) cause to become detached or separated; take off | - |
| (verb) separate (a small unit) from a larger, especially for a special assignment | - |
| detachable | (adjective) designed to be unfastened or disconnected without damage | - |
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| detached | (adjective) used of buildings; standing apart from others | - |
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| (adjective) being or feeling set or kept apart from others | Synonyms: isolated, separated, set-apart |
| (adjective) showing lack of emotional involvement | Synonyms: degage, uninvolved |
| (adjective) no longer connected or joined | Synonyms: separated |
| (adjective) not fixed in position | Synonyms: free |
| (adjective) lacking affection or warm feeling | Synonyms: unaffectionate, uncaring |
| detachment | (noun) the act of releasing from an attachment or connection | Synonyms: disengagement |
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| (noun) coming apart | Synonyms: breakup, separation |
| (noun) avoiding emotional involvement | Synonyms: withdrawal |
| (noun) a small unit of troops of special composition | - |
| (noun) the state of being isolated or detached | Synonyms: insularism, insularity, insulation |
| hackmatack | (noun) poplar of northeastern North America with broad heart-shaped leaves | Synonyms: balsam poplar, Populus balsamifera, tacamahac |
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| hardtack | (noun) very hard unsalted biscuit or bread; a former ship's staple | Synonyms: pilot biscuit, pilot bread, sea biscuit, ship biscuit |
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| (noun) a mountain mahogany | - |
| haystack | (noun) a stack of hay | Synonyms: hayrick, rick |
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| heartache | (noun) intense sorrow caused by loss of a loved one (especially by death) | Synonyms: brokenheartedness, grief, heartbreak |
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| intact | (adjective) (used of domestic animals) sexually competent | Synonyms: entire |
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| (adjective) undamaged in any way | - |
| (adjective) (of a woman) having the hymen unbroken | Synonyms: inviolate |
| (adjective) constituting the undiminished entirety; lacking nothing essential especially not damaged | Synonyms: entire, integral |
| intactness | (noun) the state of being unimpaired | - |
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| intestacy | (noun) the situation of being or dying without a legally valid will | - |
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| isotach | (noun) a line joining points with constant wind speed. | - |
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| metacarpal | (adjective) of or relating to the metacarpus | - |
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| (noun) any bone of the hand between the wrist and fingers | Synonyms: metacarpal bone |
| metacarpus | (noun) the part of the hand between the carpus and phalanges | - |
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| metacenter | (noun) (shipbuilding) the point of intersection between two vertical lines, one line through the center of buoyancy of the hull of a ship in equilibrium and the other line through the center of buoyancy of the hull when the ship is inclined to one side; the distance of this intersection above the center of gravity is an indication of the stability of the ship | Synonyms: metacentre |
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| metacentre | (noun) (shipbuilding) the point of intersection between two vertical lines, one line through the center of buoyancy of the hull of a ship in equilibrium and the other line through the center of buoyancy of the hull when the ship is inclined to one side; the distance of this intersection above the center of gravity is an indication of the stability of the ship | Synonyms: metacenter |
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| metacentric | (adjective) having two equal arms because of the median position of the centromere | - |
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| (adjective) of or relating to the metacenter | - |
| metacyesis | (noun) pregnancy resulting from gestation elsewhere than in the uterus | Synonyms: eccyesis, ectopic gestation, ectopic pregnancy, extrauterine gestation, extrauterine pregnancy |
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| mostaccioli | (noun) pasta somewhat resembling little moustaches | - |
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| moustache | (noun) an unshaved growth of hair on the upper lip | Synonyms: mustache |
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| moustachio | (noun) a large bushy moustache (with hair growing sometimes down the sides of the mouth) | Synonyms: handle-bars, mustachio |
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| mustache | (noun) an unshaved growth of hair on the upper lip | Synonyms: moustache |
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| mustached | (adjective) having a moustache | Synonyms: mustachioed |
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| mustachio | (noun) a large bushy moustache (with hair growing sometimes down the sides of the mouth) | Synonyms: handle-bars, moustachio |
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| mustachioed | (adjective) having a moustache | Synonyms: mustached |
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| obstacle | (noun) an obstruction that stands in the way (and must be removed or surmounted or circumvented) | - |
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| (noun) something immaterial that stands in the way and must be circumvented or surmounted | Synonyms: obstruction |
| pataca | (noun) the basic unit of money in Macao | - |
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| pentacle | (noun) a star with 5 points; formed by 5 straight lines between the vertices of a pentagon and enclosing another pentagon | Synonyms: pentagram, pentangle |
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| pistachio | (noun) nut of Mediterranean trees having an edible green kernel | Synonyms: pistachio nut |
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| (noun) small tree of southern Europe and Asia Minor bearing small hard-shelled nuts | Synonyms: pistachio tree, Pistacia vera |
| protactinium | (noun) a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead | Synonyms: atomic number 91, Pa, protoactinium |
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| psittacosaur | (noun) primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal | Synonyms: psittacosaurus |
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| psittacosaurus | (noun) primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal | Synonyms: psittacosaur |
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| psittacosis | (noun) infectious disease of birds | Synonyms: parrot disease |
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| (noun) an atypical pneumonia caused by a rickettsia microorganism and transmitted to humans from infected birds | Synonyms: ornithosis, parrot fever |
| receptacle | (noun) a container that is used to put or keep things in | - |
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| (noun) an electrical (or electronic) fitting that is connected to a source of power and equipped to receive an insert | - |
| (noun) enlarged tip of a stem that bears the floral parts | - |
| semidetached | (adjective) attached on one side only | - |
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| setaceous | (adjective) having or covered with protective barbs or quills or spines or thorns or setae etc. | Synonyms: barbed, barbellate, briary, briery, bristled, bristly, burred, burry, prickly, setose, spiny, thorny |
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| smokestack | (noun) a large tall chimney through which combustion gases and smoke can be evacuated | Synonyms: stack |
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| soutache | (noun) a narrow braid used as a decorative trimming | - |
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| spectacle | (noun) a blunder that makes you look ridiculous; used in the phrase `make a spectacle of' yourself | - |
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| (noun) an elaborate and remarkable display on a lavish scale | - |
| (noun) something or someone seen (especially a notable or unusual sight) | - |
| spectacled | (adjective) wearing, or having the face adorned with, eyeglasses or an eyeglass | Synonyms: bespectacled, monocled |
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| spectacles | (noun) (plural) optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision | Synonyms: eyeglasses, glasses, specs |
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| spectacular | (adjective) having a quality that thrusts itself into attention | Synonyms: outstanding, prominent, salient, striking |
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| (adjective) characteristic of spectacles or drama | - |
| (adjective) sensational in appearance or thrilling in effect | Synonyms: dramatic, striking |
| (noun) a lavishly produced performance | - |
| spectacularly | (adverb) in a spectacular manner | Synonyms: stunningly |
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| staccato | (adjective) (music) marked by or composed of disconnected parts or sounds; cut short crisply | Synonyms: disconnected |
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| (adverb) separating the notes; in music | - |
| stachyose | (noun) a tetrasaccharide found in the tubers of the Chinese artichoke | - |
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| stack | (noun) a large tall chimney through which combustion gases and smoke can be evacuated | Synonyms: smokestack |
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| (noun) a storage device that handles data so that the next item to be retrieved is the item most recently stored (LIFO) | Synonyms: push-down storage, push-down store |
| (noun) a list in which the next item to be removed is the item most recently stored (LIFO) | Synonyms: push-down list, push-down stack |
| (noun) an orderly pile | - |
| (noun) (often followed by `of') a large number or amount or extent | Synonyms: batch, deal, flock, good deal, great deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, tidy sum, wad |
| (verb) arrange in stacks | Synonyms: heap, pile |
| (verb) load or cover with stacks | - |
| (verb) arrange the order of so as to increase one's winning chances | - |
| stacked | (adjective) arranged in a stack | - |
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| (adjective) (of a woman's body) having a large bosom and pleasing curves | Synonyms: bosomy, busty, buxom, curvaceous, curvy, full-bosomed, sonsie, sonsy, voluptuous, well-endowed |
| stacker | (noun) a laborer who builds up a stack or pile | - |
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| stacks | (noun) storage space in a library consisting of an extensive arrangement of bookshelves where most of the books are stored | - |
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| (noun) a large number or amount | Synonyms: dozens, gobs, heaps, lashings, loads, lots, oodles, piles, rafts, scads, scores, slews, tons, wads |
| stacte | (noun) (Old Testament) one of several sweet-smelling spices used in incense | - |
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| stactometer | (noun) a device for investigating surface tension using the stalagmometric method. | Synonyms: stalagmometer, stalogometer |
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| sustentacular | (adjective) serving to sustain or support | - |
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| syntactic | (adjective) of or relating to or conforming to the rules of syntax | Synonyms: syntactical |
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| syntactical | (adjective) of or relating to or conforming to the rules of syntax | Synonyms: syntactic |
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| syntactically | (adverb) with respect to syntax | - |
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| syntactician | (noun) a linguist who specializes in the study of grammar and syntax | Synonyms: grammarian |
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| tacamahac | (noun) poplar of northeastern North America with broad heart-shaped leaves | Synonyms: balsam poplar, hackmatack, Populus balsamifera |
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| tach | (noun) measuring instrument for indicating speed of rotation | Synonyms: tachometer |
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| tacheometer | (noun) a theodolite designed for rapid measurements | Synonyms: tachymeter |
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| tachistoscope | (noun) scientific instrument used by psychologists; presents visual stimuli for brief exposures | Synonyms: t-scope |
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| tachogram | (noun) a graphical record of speed and distance produced by a tachograph | - |
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| tachograph | (noun) a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle | - |
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| tachometer | (noun) measuring instrument for indicating speed of rotation | Synonyms: tach |
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| tachycardia | (noun) abnormally rapid heartbeat (over 100 beats per minute) | - |
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