| boracic | (adjective) of or relating to or derived from or containing boron | Synonyms: boric |
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| borage | (noun) an herb whose leaves are used to flavor sauces and punches; young leaves can be eaten in salads or cooked | - |
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| (noun) hairy blue-flowered European annual herb long used in herbal medicine and eaten raw as salad greens or cooked like spinach | Synonyms: Borago officinalis, tailwort |
| borate | (noun) a salt or ester of boric acid | - |
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| borated | (adjective) mixed or impregnated with borax | - |
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| borax | (noun) an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent | - |
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| bordelaise | (noun) brown sauce with beef marrow and red wine | - |
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| bordello | (noun) a building where prostitutes are available | Synonyms: bagnio, bawdyhouse, brothel, cathouse, house of ill repute, house of prostitution, sporting house, whorehouse |
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| border | (noun) a strip forming the outer edge of something | - |
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| (noun) a decorative recessed or relieved surface on an edge | Synonyms: molding, moulding |
| (noun) a line that indicates a boundary | Synonyms: borderline, boundary line, delimitation, mete |
| (noun) the boundary of a surface | Synonyms: edge |
| (noun) the boundary line or the area immediately inside the boundary | Synonyms: margin, perimeter |
| (verb) lie adjacent to another or share a boundary | Synonyms: abut, adjoin, butt, butt against, butt on, edge, march |
| (verb) extend on all sides of simultaneously; encircle | Synonyms: environ, ring, skirt, surround |
| (verb) enclose in or as if in a frame | Synonyms: frame, frame in |
| (verb) provide with a border or edge | Synonyms: edge |
| (verb) form the boundary of; be contiguous to | Synonyms: bound |
| bordered | (adjective) having a border especially of a specified kind; sometimes used as a combining term | - |
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| borderer | (noun) an inhabitant of a border area (especially the border between Scotland and England) | - |
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| borderland | (noun) district consisting of the area on either side of a border or boundary of a country or an area | Synonyms: border district, march, marchland |
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| borderline | (adjective) of questionable or minimal quality | Synonyms: marginal |
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| (noun) a line that indicates a boundary | Synonyms: border, boundary line, delimitation, mete |
| bore | (noun) a hole or passage made by a drill; usually made for exploratory purposes | Synonyms: bore-hole, drill hole |
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| (noun) diameter of a tube or gun barrel | Synonyms: caliber, calibre, gauge |
| (noun) a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary) | Synonyms: aegir, eager, eagre, tidal bore |
| (noun) a person who evokes boredom | Synonyms: dullard |
| (verb) make a hole, especially with a pointed power or hand tool | Synonyms: drill |
| (verb) cause to be bored | Synonyms: tire |
| boreal | (adjective) toward or located in the north | - |
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| (adjective) relating to or marked by qualities associated with the north wind | - |
| (adjective) comprising or throughout far northern regions | Synonyms: circumboreal |
| boreas | (noun) a wind that blows from the north | Synonyms: north wind, norther, northerly |
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| borecole | (noun) a hardy cabbage with coarse curly leaves that do not form a head | Synonyms: Brassica oleracea acephala, cole, colewort, kail, kale |
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| bored | (adjective) tired of the world | Synonyms: world-weary |
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| (adjective) uninterested because of frequent exposure or indulgence | Synonyms: blase |
| boredom | (noun) the feeling of being bored by something tedious | Synonyms: ennui, tedium |
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| borer | (noun) any of various insects or larvae or mollusks that bore into wood | Synonyms: woodborer |
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| (noun) a drill for penetrating rock | Synonyms: bore bit, rock drill, stone drill |
| boric | (adjective) of or relating to or derived from or containing boron | Synonyms: boracic |
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| boring | (adjective) so lacking in interest as to cause mental weariness | Synonyms: deadening, dull, ho-hum, irksome, slow, tedious, tiresome, wearisome |
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| (noun) the act of drilling a hole in the earth in the hope of producing petroleum | Synonyms: drilling, oil production |
| (noun) the act of drilling | Synonyms: drilling |
| boringly | (adverb) in a tedious manner | Synonyms: tediously, tiresomely |
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| boringness | (noun) extreme dullness; lacking spirit or interest | Synonyms: dreariness, insipidity, insipidness |
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| born | (adjective) brought into existence | - |
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| (adjective) being talented through inherited qualities | Synonyms: innate, natural |
| bornite | (noun) a mineral consisting of sulfides of copper and iron that is found in copper deposits | Synonyms: peacock ore |
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| boron | (noun) a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder | Synonyms: atomic number 5, B |
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| boronic | (adjective) of or relating to boron | - |
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| borosilicate | (noun) a salt of boric and silicic acids | - |
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| borough | (noun) one of the administrative divisions of a large city | - |
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| (noun) an English town that forms the constituency of a member of parliament | - |
| borrelia | (noun) cause of e.g. European and African relapsing fever | - |
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| borrow | (verb) get temporarily | - |
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| (verb) take up and practice as one's own | Synonyms: adopt, take over, take up |
| borrower | (noun) someone who receives something on the promise to return it or its equivalent | - |
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| borrowing | (noun) obtaining funds from a lender | - |
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| (noun) the appropriation (of ideas or words etc) from another source | Synonyms: adoption |
| borsch | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borscht, borsh, borshch, borsht, bortsch |
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| borscht | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borsch, borsh, borshch, borsht, bortsch |
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| borsh | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borsch, borscht, borshch, borsht, bortsch |
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| borshch | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borsch, borscht, borsh, borsht, bortsch |
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| borsht | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borsch, borscht, borsh, borshch, bortsch |
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| borstal | (noun) formerly a British reform school for youths considered too young to send to prison | - |
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| bortsch | (noun) a Russian or Polish soup usually containing beet juice as a foundation | Synonyms: borsch, borscht, borsh, borshch, borsht |
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| borzoi | (noun) tall fast-moving dog breed | Synonyms: Russian wolfhound |
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| bosc | (noun) greenish-yellow pear | - |
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| bosh | (noun) pretentious or silly talk or writing | Synonyms: baloney, bilgewater, boloney, drool, humbug, taradiddle, tarradiddle, tommyrot, tosh, twaddle |
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| bosie | (noun) a cricket ball bowled as if to break one way that actually breaks in the opposite way | Synonyms: bosie ball, googly, wrong 'un |
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| bosk | (noun) a small wooded area | - |
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| boskopoid | (adjective) belonging or relating to or resembling Boskop man | - |
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| bosky | (adjective) covered with or consisting of bushes or thickets | Synonyms: brushy |
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| bosom | (noun) a close affectionate and protective acceptance | Synonyms: embrace |
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| (noun) cloth that covers the chest or breasts | - |
| (noun) either of two soft fleshy milk-secreting glandular organs on the chest of a woman | Synonyms: boob, breast, knocker, tit, titty |
| (noun) a person's breast or chest | - |
| (noun) the locus of feelings and intuitions | Synonyms: heart |
| (noun) the chest considered as the place where secret thoughts are kept | - |
| (verb) hold (someone) tightly in your arms, usually with fondness | Synonyms: embrace, hug, squeeze |
| (verb) hide in one's bosom | - |
| bosomed | (adjective) having a bosom as specified or having something likened to a bosom; usually used in compounds | - |
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| bosomy | (adjective) (of a woman's body) having a large bosom and pleasing curves | Synonyms: busty, buxom, curvaceous, curvy, full-bosomed, sonsie, sonsy, stacked, voluptuous, well-endowed |
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| boson | (noun) any particle that obeys Bose-Einstein statistics but not the Pauli exclusion principle; all nuclei with an even mass number are bosons | - |
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| boss | (adjective) exceptionally good | Synonyms: brag |
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| (noun) a circular rounded projection or protuberance | Synonyms: knob |
| (noun) a person responsible for hiring workers | Synonyms: hirer |
| (noun) a person who exercises control over workers | Synonyms: chief, foreman, gaffer, honcho |
| (noun) a leader in a political party who controls votes and dictates appointments | Synonyms: party boss, political boss |
| (noun) a person who exercises control and makes decisions | - |
| (verb) raise in a relief | Synonyms: emboss, stamp |
| bossism | (noun) domination of a political organization by a party boss | - |
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| bossy | (adjective) offensively self-assured or given to exercising usually unwarranted power | Synonyms: autocratic, dominating, high-and-mighty, magisterial, peremptory |
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| bosun | (noun) a petty officer on a merchant ship who controls the work of other seamen | Synonyms: bo's'n, bo'sun, boatswain, bos'n |
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| bot | (noun) botfly larva; typically develops inside the body of a horse or sheep or human | - |
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| bota | (noun) a wine bottle made of leather | - |
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| botanic | (adjective) of or relating to plants or botany | Synonyms: botanical |
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| botanical | (adjective) of or relating to plants or botany | Synonyms: botanic |
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| (noun) a drug made from part of a plant (as the bark or root or leaves) | - |
| botanise | (verb) collect and study plants | Synonyms: botanize |
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| botanist | (noun) a biologist specializing in the study of plants | Synonyms: phytologist, plant scientist |
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| botanize | (verb) collect and study plants | Synonyms: botanise |
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| botany | (noun) the branch of biology that studies plants | Synonyms: phytology |
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| (noun) all the plant life in a particular region or period | Synonyms: flora, vegetation |
| botch | (noun) an embarrassing mistake | Synonyms: bloomer, blooper, blunder, boner, boo-boo, bungle, flub, foul-up, fuckup, pratfall |
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| (verb) make a mess of, destroy or ruin | Synonyms: ball up, blow, bobble, bodge, bollix, bollix up, bollocks, bollocks up, botch up, bumble, bungle, flub, fluff, foul up, fuck up, fumble, louse up, mess up, mishandle, muck up, muff, screw up, spoil |
| botched | (adjective) spoiled through incompetence or clumsiness | Synonyms: bungled |
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| botcher | (noun) someone who makes mistakes because of incompetence | Synonyms: blunderer, bumbler, bungler, butcher, fuckup, fumbler, sad sack, stumbler |
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| botchy | (adjective) poorly done | Synonyms: butcherly, unskillful |
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| botfly | (noun) stout-bodied hairy dipterous fly whose larvae are parasites on humans and other mammals | - |
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| both | (adjective) (used with count nouns) two considered together; the two | - |
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| bother | (noun) something or someone that causes trouble; a source of unhappiness | Synonyms: annoyance, botheration, infliction, nuisance, pain, pain in the ass, pain in the neck |
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| (noun) an angry disturbance | Synonyms: fuss, hassle, trouble |
| (verb) cause annoyance in; disturb, especially by minor irritations | Synonyms: annoy, chafe, devil, get at, get to, gravel, irritate, nark, nettle, rag, rile, vex |
| (verb) make confused or perplexed or puzzled | - |
| (verb) make nervous or agitated | - |
| (verb) intrude or enter uninvited | - |
| (verb) take the trouble to do something; concern oneself | Synonyms: inconvenience oneself, trouble, trouble oneself |
| (verb) to cause inconvenience or discomfort to | Synonyms: discommode, disoblige, incommode, inconvenience, put out, trouble |
| botheration | (noun) something or someone that causes trouble; a source of unhappiness | Synonyms: annoyance, bother, infliction, nuisance, pain, pain in the ass, pain in the neck |
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| (noun) the psychological state of being irritated or annoyed | Synonyms: annoyance, irritation, vexation |
| bothered | (adjective) caused to show discomposure | Synonyms: daunted, fazed |
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| bothersome | (adjective) causing irritation or annoyance | Synonyms: annoying, galling, irritating, nettlesome, pesky, pestering, pestiferous, plaguey, plaguy, teasing, vexatious, vexing |
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| botonee | (adjective) (of a heraldic cross) having a cluster of three buttons or knobs at the end of each arm | Synonyms: botonnee |
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| botonnee | (adjective) (of a heraldic cross) having a cluster of three buttons or knobs at the end of each arm | Synonyms: botonee |
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| botryoid | (adjective) resembling a cluster of grapes in form | Synonyms: botryoidal, boytrose |
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| botryoidal | (adjective) resembling a cluster of grapes in form | Synonyms: botryoid, boytrose |
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| bottle | (noun) a glass or plastic vessel used for storing drinks or other liquids; typically cylindrical without handles and with a narrow neck that can be plugged or capped | - |
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| (noun) a vessel fitted with a flexible teat and filled with milk or formula; used as a substitute for breast feeding infants and very young children | Synonyms: feeding bottle, nursing bottle |
| (noun) the quantity contained in a bottle | Synonyms: bottleful |
| (verb) put into bottles | - |
| (verb) store (liquids or gases) in bottles | - |
| bottlebrush | (noun) a cylindrical brush on a thin shaft that is used to clean bottles | - |
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| bottlecap | (noun) a cap that seals a bottle | - |
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| bottlefeed | (verb) feed (infants) with a bottle | - |
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| bottleful | (noun) the quantity contained in a bottle | Synonyms: bottle |
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| bottleneck | (noun) the narrow part of a bottle near the top | - |
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| (noun) a narrowing that reduces the flow through a channel | Synonyms: chokepoint, constriction |
| (verb) become narrow, like a bottleneck | - |
| (verb) slow down or impede by creating an obstruction | - |
| bottlenose | (noun) northern Atlantic beaked whale with a bulbous forehead | Synonyms: bottle-nosed whale, bottlenose whale, Hyperoodon ampullatus |
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| (noun) any of several dolphins with rounded forehead and well-developed beak; chiefly of northern Atlantic and Mediterranean | Synonyms: bottle-nosed dolphin, bottlenose dolphin |
| bottler | (noun) a manufacturer that makes and bottles beverages | - |
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| bottom | (adjective) situated at the bottom or lowest position | - |
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| (adjective) the lowest rank | - |
| (noun) a cargo ship | Synonyms: freighter, merchant ship, merchantman |
| (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, backside, behind, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush |
| (noun) the lower side of anything | Synonyms: underside, undersurface |
| (noun) the lowest part of anything | - |
| (noun) a depression forming the ground under a body of water | Synonyms: bed |
| (noun) low-lying alluvial land near a river | Synonyms: bottomland |
| (noun) the second half of an inning; while the home team is at bat | Synonyms: bottom of the inning |
| (verb) come to understand | Synonyms: fathom, penetrate |
| (verb) strike the ground, as with a ship's bottom | - |
| (verb) provide with a bottom or a seat | - |
| bottomed | (adjective) having a bottom of a specified character | - |
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| bottomland | (noun) low-lying alluvial land near a river | Synonyms: bottom |
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| bottomless | (adjective) having no bottom | - |
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| (adjective) extremely deep | - |
| (adjective) unclothed especially below the waist or featuring such nudeness | - |
| (adjective) having no apparent limits or bounds | - |
| bottomlessness | (noun) the property of being very deep; without limit | - |
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| bottommost | (adjective) farthest down | Synonyms: lowermost, nethermost |
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| botuliform | (adjective) long with rounded ends | - |
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| botulin | (noun) potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon | Synonyms: botulinus toxin, botulismotoxin |
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| botulinal | (adjective) of or relating to or produced by the botulinus | - |
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| botulinum | (noun) anaerobic bacterium producing botulin the toxin that causes botulism | Synonyms: botulinus, Clostridium botulinum |
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| botulinus | (noun) anaerobic bacterium producing botulin the toxin that causes botulism | Synonyms: botulinum, Clostridium botulinum |
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| botulism | (noun) food poisoning from ingesting botulin; not infectious; affects the CNS; can be fatal if not treated promptly | - |
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| botulismotoxin | (noun) potent bacterial toxin produced by the bacterium Clostridium botulinum that causes botulism; can be used as a bioweapon | Synonyms: botulin, botulinus toxin |
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| bouchee | (noun) shell of puff paste | Synonyms: patty shell |
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| boucle | (noun) a fabric of uneven yarn that has an uneven knobby effect | - |
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