| acellular | (adjective) not made up of or divided into cells | Synonyms: noncellular |
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| acetabular | (adjective) of the cup-shaped socket that receives the head of the thigh bone | Synonyms: cotyloid, cotyloidal |
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| acicular | (adjective) narrow and long and pointed; as pine leaves | Synonyms: acerate, acerose, needle-shaped |
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| acinar | (adjective) pertaining to the individual parts making up an aggregate fruit like a blackberry | - |
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| (adjective) pertaining to one of the small sacs (as in a compound gland) | Synonyms: acinic, acinose, acinous |
| activewear | (noun) attire worn for sport or for casual wear | Synonyms: athletic wear, sportswear |
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| afar | (adverb) (old-fashioned) at or from or to a great distance; far | - |
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| agar | (noun) a colloidal extract of algae; used especially in culture media and as a gelling agent in foods | Synonyms: agar-agar |
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| (noun) any culture medium that uses agar as the gelling agent | Synonyms: nutrient agar |
| ajar | (adjective) slightly open | - |
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| alar | (adjective) of or relating to the axil | Synonyms: axillary |
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| (adjective) having or resembling wings | Synonyms: alary, aliform, wing-shaped |
| alcazar | (noun) any of various Spanish fortresses or palaces built by the Moors | - |
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| altar | (noun) a raised structure on which gifts or sacrifices to a god are made | - |
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| (noun) the table in Christian churches where communion is given | Synonyms: communion table, Lord's table |
| alular | (adjective) pertaining to alulae | - |
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| alveolar | (adjective) pertaining to the tiny air sacs of the lungs | - |
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| (adjective) pertaining to the sockets of the teeth or that part of the upper jaw | - |
| (noun) a consonant articulated with the tip of the tongue near the gum ridge | Synonyms: alveolar consonant, dental, dental consonant |
| amphiprostylar | (adjective) marked by columniation having free columns in porticoes either at both ends or at both sides of a structure | Synonyms: amphiprostyle, amphistylar, porticoed |
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| amphistylar | (adjective) marked by columniation having free columns in porticoes either at both ends or at both sides of a structure | Synonyms: amphiprostylar, amphiprostyle, porticoed |
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| (adjective) having columns either at both ends or at both sides | - |
| ampullar | (adjective) of or related to an ampulla | Synonyms: ampullary |
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| angular | (adjective) having angles or an angular shape | Synonyms: angulate |
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| (adjective) measured by an angle or by the rate of change of an angle | - |
| annular | (adjective) shaped like a ring | Synonyms: annulate, annulated, circinate, doughnut-shaped, ring-shaped, ringed |
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| antimacassar | (noun) a piece of ornamented cloth that protects the back of a chair from hair oils | - |
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| apar | (noun) South American armadillo with three bands of bony plates | Synonyms: three-banded armadillo, Tolypeutes tricinctus |
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| appear | (verb) come into sight or view | - |
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| (verb) be issued or published | Synonyms: come out |
| (verb) come into being or existence, or appear on the scene | Synonyms: come along |
| (verb) appear as a character on stage or appear in a play, etc. | - |
| (verb) give a certain impression of being something or having a certain aspect | Synonyms: look, seem |
| (verb) (of a proposition) seem to be true, probable, or apparent | Synonyms: seem |
| (verb) present oneself formally, as before a (judicial) authority | - |
| appendicular | (adjective) relating to or consisting of an appendage or appendages; especially the limbs | - |
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| ar | (noun) a unit of surface area equal to 100 square meters | Synonyms: are |
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| areolar | (adjective) relating to or like or divided into areolae | Synonyms: areolate |
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| arteriolar | (adjective) of or relating to or involving arterioles | - |
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| articular | (adjective) relating to or affecting the joints of the body | Synonyms: articulary |
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| ashlar | (noun) a rectangular block of hewn stone used for building purposes | - |
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| astragalar | (adjective) of or relating to the anklebone | - |
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| astylar | (adjective) lacking columns or pillars | - |
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| atar | (noun) essential oil or perfume obtained from flowers | Synonyms: athar, attar, ottar |
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| athar | (noun) essential oil or perfume obtained from flowers | Synonyms: atar, attar, ottar |
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| atrioventricular | (adjective) relating to or affecting the atria and ventricles of the heart | Synonyms: auriculoventricular |
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| attar | (noun) essential oil or perfume obtained from flowers | Synonyms: atar, athar, ottar |
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| auricular | (adjective) of or relating to near the ear | Synonyms: otic |
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| (adjective) pertaining to an auricle of the heart | - |
| (adjective) relating to or perceived by or shaped like the organ of hearing | - |
| auriculoventricular | (adjective) relating to or affecting the atria and ventricles of the heart | Synonyms: atrioventricular |
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| avascular | (adjective) without blood vessels | - |
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| avatar | (noun) the manifestation of a Hindu deity (especially Vishnu) in human or superhuman or animal form | - |
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| (noun) a new personification of a familiar idea | Synonyms: embodiment, incarnation |
| avuncular | (adjective) being or relating to an uncle | - |
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| (adjective) resembling an uncle in kindness or indulgence | - |
| bacillar | (adjective) relating to or produced by or containing bacilli | Synonyms: bacillary |
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| (adjective) formed like a bacillus | Synonyms: bacillary, bacilliform, baculiform, rod-shaped |
| bar | (noun) the act of preventing | Synonyms: prevention |
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| (noun) a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon | - |
| (noun) an obstruction (usually metal) placed at the top of a goal | - |
| (noun) a room or establishment where alcoholic drinks are served over a counter | Synonyms: barroom, ginmill, saloon, taproom |
| (noun) a counter where you can obtain food or drink | - |
| (noun) a block of solid substance (such as soap or wax) | Synonyms: cake |
| (noun) (law) a railing that encloses the part of the courtroom where the judges and lawyers sit and the case is tried | - |
| (noun) a heating element in an electric fire | - |
| (noun) a horizontal rod that serves as a support for gymnasts as they perform exercises | - |
| (noun) a narrow marking of a different color or texture from the background | Synonyms: streak, stripe |
| (noun) musical notation for a repeating pattern of musical beats | Synonyms: measure |
| (noun) the body of individuals qualified to practice law in a particular jurisdiction | Synonyms: legal community, legal profession |
| (noun) a submerged (or partly submerged) ridge in a river or along a shore | - |
| (noun) (meteorology) a unit of pressure equal to a million dynes per square centimeter | - |
| (verb) prevent from entering; keep out | Synonyms: debar, exclude |
| (verb) render unsuitable for passage | Synonyms: barricade, block, block off, block up, blockade, stop |
| (verb) secure with, or as if with, bars | - |
| (verb) expel, as if by official decree | Synonyms: banish, relegate |
| basilar | (adjective) of or relating to or located at the base | Synonyms: basilary |
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| bazaar | (noun) a sale of miscellany; often for charity | Synonyms: fair |
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| (noun) a shop where a variety of goods are sold | Synonyms: bazar |
| (noun) a street of small shops (especially in Orient) | Synonyms: bazar |
| bazar | (noun) a shop where a variety of goods are sold | Synonyms: bazaar |
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| (noun) a street of small shops (especially in Orient) | Synonyms: bazaar |
| beachwear | (noun) clothing to be worn at a beach | - |
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| bear | (noun) massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws | - |
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| (noun) an investor with a pessimistic market outlook; an investor who expects prices to fall and so sells now in order to buy later at a lower price | - |
| (verb) be pregnant with | Synonyms: carry, expect, gestate, have a bun in the oven |
| (verb) cause to be born | Synonyms: birth, deliver, give birth, have |
| (verb) have on one's person | Synonyms: wear |
| (verb) behave in a certain manner; show a certain behavior; conduct or comport oneself | Synonyms: acquit, act, behave, carry, comport, conduct, deport, do |
| (verb) put up with something or somebody unpleasant | Synonyms: abide, brook, digest, endure, put up, stand, stick out, stomach, suffer, support, tolerate |
| (verb) move while holding up or supporting | - |
| (verb) support or hold in a certain manner | Synonyms: carry, hold |
| (verb) bring forth | Synonyms: turn out |
| (verb) maintain (a theory, thoughts, or feelings) | Synonyms: entertain, harbor, harbour, hold, nurse |
| (verb) have rightfully; of rights, titles, and offices | Synonyms: hold |
| (verb) bring in | Synonyms: pay, yield |
| (verb) take on as one's own the expenses or debts of another person | Synonyms: accept, assume, take over |
| (verb) have | - |
| (verb) contain or hold; have within | Synonyms: carry, contain, hold |
| beggar | (noun) a pauper who lives by begging | Synonyms: mendicant |
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| (verb) reduce to beggary | Synonyms: pauperise, pauperize |
| (verb) be beyond the resources of | - |
| besmear | (verb) spread or daub (a surface) | Synonyms: bedaub |
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| biauricular | (adjective) relating to the two auditory openings | - |
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| bicapsular | (adjective) divided into two capsules or having a two-part capsule | - |
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| bifilar | (adjective) having or using two filaments | - |
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| bilinear | (adjective) linear with respect to each of two variables or positions | - |
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| bilocular | (adjective) divided into or containing two cells or chambers | Synonyms: biloculate |
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| bimolecular | (adjective) relating to or affecting two molecules | - |
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| binocular | (adjective) relating to both eyes | - |
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| binuclear | (adjective) having two nuclei | Synonyms: binucleate, binucleated |
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| biovular | (adjective) (of twins) derived from two separate fertilized ova | Synonyms: fraternal |
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| bipolar | (adjective) having two poles | - |
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| (adjective) of, pertaining to, or occurring in both polar regions | - |
| (adjective) of or relating to manic depressive illness | - |
| blastular | (adjective) of or relating to a blastula | Synonyms: blastospheric |
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| blear | (adjective) tired to the point of exhaustion | Synonyms: blear-eyed, bleary-eyed, bleary |
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| (verb) make dim or indistinct | Synonyms: blur |
| boar | (noun) an uncastrated male hog | - |
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| (noun) Old World wild swine having a narrow body and prominent tusks from which most domestic swine come; introduced in United States | Synonyms: Sus scrofa, wild boar |
| bolivar | (noun) the basic unit of money in Venezuela; equal to 100 centimos | - |
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| boxcar | (noun) a freight car with roof and sliding doors in the sides | - |
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| briar | (noun) a pipe made from the root (briarroot) of the tree heath | Synonyms: briar pipe |
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| (noun) evergreen treelike Mediterranean shrub having fragrant white flowers in large terminal panicles and hard woody roots used to make tobacco pipes | Synonyms: brier, Erica arborea, tree heath |
| (noun) a very prickly woody vine of the eastern United States growing in tangled masses having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries | Synonyms: brier, bullbrier, catbrier, greenbrier, horse-brier, horse brier, Smilax rotundifolia |
| (noun) Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips | Synonyms: brier, eglantine, Rosa eglanteria, sweetbriar, sweetbrier |
| bronchiolar | (adjective) of or relating to or involving bronchioles | - |
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| budgerigar | (noun) small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors | Synonyms: budgereegah, budgerygah, budgie, grass parakeet, lovebird, Melopsittacus undulatus, shell parakeet |
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| bugbear | (noun) an object of dread or apprehension | Synonyms: hobgoblin |
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| (noun) an imaginary monster used to frighten children | Synonyms: bogeyman, booger, boogeyman, bugaboo |
| bulbar | (adjective) involving the medulla oblongata | - |
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| burglar | (noun) a thief who enters a building with intent to steal | - |
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| bursar | (noun) the treasurer at a college or university | - |
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| busbar | (noun) an electrical conductor that makes a common connection between several circuits | Synonyms: bus |
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| calendar | (noun) a list or register of events (appointments or social events or court cases etc) | - |
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| (noun) a tabular array of the days (usually for one year) | - |
| (noun) a system of timekeeping that defines the beginning and length and divisions of the year | - |
| (verb) enter into a calendar | - |
| calicular | (adjective) relating to or resembling a calyculus | Synonyms: calycular |
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| calycular | (adjective) relating to or resembling a calyculus | Synonyms: calicular |
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| campanular | (adjective) shaped like a bell or campana | Synonyms: campanulate, campanulated |
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| canalicular | (adjective) relating to or like or having a canaliculus | - |
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| canicular | (adjective) relating to or especially immediately preceding or following the heliacal rising of Canicula (the Dog Star) | - |
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| (adjective) of or relating to the dog days of summer | - |
| cannular | (adjective) constituting a tube; having hollow tubes (as for the passage of fluids) | Synonyms: tube-shaped, tubelike, tubular, vasiform |
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| capitular | (adjective) of or pertaining to an ecclesiastical chapter | Synonyms: capitulary |
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| capsular | (adjective) of or relating to a capsule | - |
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| (adjective) resembling a capsule | - |
| car | (noun) a motor vehicle with four wheels; usually propelled by an internal combustion engine | Synonyms: auto, automobile, machine, motorcar |
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| (noun) a wheeled vehicle adapted to the rails of railroad | Synonyms: railcar, railroad car, railway car |
| (noun) where passengers ride up and down | Synonyms: elevator car |
| (noun) the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant | Synonyms: gondola |
| (noun) a conveyance for passengers or freight on a cable railway | Synonyms: cable car |
| carbuncular | (adjective) afflicted with or resembling a carbuncle | Synonyms: carbuncled |
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| cardiovascular | (adjective) of or pertaining to or involving the heart and blood vessels | - |
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| caruncular | (adjective) resembling a caruncle | Synonyms: carunculous |
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| caterpillar | (noun) a wormlike and often brightly colored and hairy or spiny larva of a butterfly or moth | - |
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| caviar | (noun) salted roe of sturgeon or other large fish; usually served as an hors d'oeuvre | Synonyms: caviare |
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| cedar | (noun) any cedar of the genus Cedrus | Synonyms: cedar tree, true cedar |
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| (noun) any of numerous trees of the family Cupressaceae that resemble cedars | Synonyms: cedar tree |
| (noun) durable aromatic wood of any of numerous cedar trees; especially wood of the red cedar often used for cedar chests | Synonyms: cedarwood |
| cellar | (noun) the lowermost portion of a structure partly or wholly below ground level; often used for storage | Synonyms: basement |
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| (noun) storage space where wines are stored | Synonyms: wine cellar |
| (noun) an excavation where root vegetables are stored | Synonyms: root cellar |
| cellular | (adjective) characterized by or divided into or containing cells or compartments (the smallest organizational or structural unit of an organism or organization) | - |
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| (adjective) relating to cells | - |
| cerebellar | (adjective) relating to or associated with the cerebellum | - |
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| cerebrovascular | (adjective) of or relating to the brain and the blood vessels that supply it | - |
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| chadar | (noun) a cloth used as a head covering (and veil and shawl) by Muslim and Hindu women | Synonyms: chaddar, chador, chuddar |
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| chaddar | (noun) a cloth used as a head covering (and veil and shawl) by Muslim and Hindu women | Synonyms: chadar, chador, chuddar |
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| chanar | (noun) thorny shrub or small tree common in central Argentina having small orange or yellow flowers followed by edible berries | Synonyms: chanal, Geoffroea decorticans |
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| char | (noun) any of several small trout-like fish of the genus Salvelinus | Synonyms: charr |
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| (noun) a human female employed to do housework | Synonyms: charwoman, cleaning lady, cleaning woman |
| (noun) a charred substance | - |
| (verb) burn slightly and superficially so as to affect color | Synonyms: blacken, scorch, sear |
| (verb) burn to charcoal | Synonyms: coal |
| cheddar | (noun) hard smooth-textured cheese; originally made in Cheddar in southwestern England | Synonyms: American cheese, Armerican cheddar, cheddar cheese |
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| chuddar | (noun) a cloth used as a head covering (and veil and shawl) by Muslim and Hindu women | Synonyms: chadar, chaddar, chador |
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| cigar | (noun) a roll of tobacco for smoking | - |
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| cinnabar | (adjective) of a vivid red to reddish-orange color | Synonyms: Chinese-red, vermilion, vermillion |
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| (noun) large red-and-black European moth; larvae feed on leaves of ragwort; introduced into United States to control ragwort | Synonyms: Callimorpha jacobeae, cinnabar moth |
| (noun) a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury | - |
| circular | (adjective) having the shape or form of a circle | Synonyms: round |
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| (adjective) describing a circle; moving in a circle | Synonyms: orbitual, rotary |
| (noun) an advertisement (usually printed on a page or in a leaflet) intended for wide distribution | Synonyms: bill, broadsheet, broadside, flier, flyer, handbill, throwaway |
| circumpolar | (adjective) located or found throughout a polar region | - |
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| (adjective) (of a celestial body) continually visible above the horizon during the entire 360 degrees of daily travel | - |