| blossom | (noun) reproductive organ of angiosperm plants especially one having showy or colorful parts | Synonyms: bloom, flower |
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| (noun) the period of greatest prosperity or productivity | Synonyms: bloom, efflorescence, flower, flush, heyday, peak, prime |
| (verb) develop or come to a promising stage | Synonyms: blossom forth, blossom out, unfold |
| (verb) produce or yield flowers | Synonyms: bloom, flower |
| blossoming | (noun) the time and process of budding and unfolding of blossoms | Synonyms: anthesis, efflorescence, florescence, flowering, inflorescence |
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| boardroom | (noun) a room where a committee meets (such as the board of directors of a company) | Synonyms: council chamber |
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| bolometer | (noun) an instrument that measures heat radiation; extremely sensitive | - |
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| bolometric | (adjective) of or relating to a bolometer | - |
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| bomb | (noun) an explosive device fused to explode under specific conditions | - |
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| (noun) strong sealed vessel for measuring heat of combustion | Synonyms: bomb calorimeter |
| (noun) an event that fails badly or is totally ineffectual | Synonyms: dud, turkey |
| (verb) throw bombs at or attack with bombs | Synonyms: bombard |
| (verb) fail to get a passing grade | Synonyms: fail, flunk, flush it |
| bombard | (noun) a large shawm; the bass member of the shawm family | Synonyms: bombardon |
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| (verb) direct high energy particles or radiation against | - |
| (verb) address with continuously or persistently, as if with a barrage | Synonyms: barrage |
| (verb) throw bombs at or attack with bombs | Synonyms: bomb |
| (verb) cast, hurl, or throw repeatedly with some missile | Synonyms: pelt |
| bombardier | (noun) the member of a bomber crew responsible for using the bombsight and releasing the bombs on the target | - |
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| (noun) a noncommissioned officer in the British artillery | - |
| bombardment | (noun) the heavy fire of artillery to saturate an area rather than hit a specific target | Synonyms: barrage, barrage fire, battery, shelling |
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| (noun) an attack by dropping bombs | Synonyms: bombing |
| (noun) the act (or an instance) of subjecting a body or substance to the impact of high-energy particles (as electrons or alpha rays) | - |
| (noun) the rapid and continuous delivery of linguistic communication (spoken or written) | Synonyms: barrage, onslaught, outpouring |
| bombardon | (noun) a large shawm; the bass member of the shawm family | Synonyms: bombard |
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| (noun) a tuba that coils over the shoulder of the musician | Synonyms: helicon |
| bombast | (noun) pompous or pretentious talk or writing | Synonyms: blah, claptrap, fustian, rant |
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| bombastic | (adjective) ostentatiously lofty in style | Synonyms: declamatory, large, orotund, tumid, turgid |
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| bombastically | (adverb) in a grandiose manner | Synonyms: grandiosely |
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| (adverb) in a turgid manner | Synonyms: turgidly |
| bombazine | (noun) a twilled fabric used for dresses; the warp is silk and the weft is worsted | - |
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| bomber | (noun) a military aircraft that drops bombs during flight | - |
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| (noun) a large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States | Synonyms: Cuban sandwich, grinder, hero, hero sandwich, hoagie, hoagy, Italian sandwich, poor boy, sub, submarine, submarine sandwich, torpedo, wedge, zep |
| (noun) a person who plants bombs | - |
| bombie | (noun) an unexploded bomblet | - |
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| bombilate | (verb) make a buzzing sound | Synonyms: bombinate, buzz |
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| bombilation | (noun) sound of rapid vibration | Synonyms: bombination, buzz |
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| bombinate | (verb) make a buzzing sound | Synonyms: bombilate, buzz |
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| bombination | (noun) sound of rapid vibration | Synonyms: bombilation, buzz |
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| bombing | (noun) an attack by dropping bombs | Synonyms: bombardment |
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| (noun) the use of bombs for sabotage; a tactic frequently used by terrorists | - |
| bomblet | (noun) one of the smaller bombs that are released from a cluster bomb | Synonyms: cluster bomblet |
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| bombproof | (adjective) able to resist the explosive force of bombs and shells | Synonyms: shellproof |
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| (noun) a chamber (often underground) reinforced against bombing and provided with food and living facilities; used during air raids | Synonyms: air-raid shelter, bomb shelter |
| (verb) make safe against bombings | - |
| bombshell | (noun) an explosive bomb or artillery shell | - |
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| (noun) a shocking surprise | Synonyms: thunderbolt, thunderclap |
| (noun) an entertainer who has a sensational effect | - |
| bombsight | (noun) a sighting device in an aircraft for aiming bombs | - |
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| bombycid | (noun) moderate-sized Asiatic moth whose larvae feed on mulberry leaves and produce silk | Synonyms: bombycid moth, silkworm moth |
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| bondswoman | (noun) a female slave | Synonyms: bondmaid, bondwoman |
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| (noun) a female bound to serve without wages | Synonyms: bondmaid, bondwoman |
| (noun) a female who signs a bond as surety for someone else | - |
| bondwoman | (noun) a female slave | Synonyms: bondmaid, bondswoman |
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| (noun) a female bound to serve without wages | Synonyms: bondmaid, bondswoman |
| bonhomie | (noun) a disposition to be friendly and approachable (easy to talk to) | Synonyms: affability, affableness, amiability, amiableness, geniality |
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| boom | (noun) any of various more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring | - |
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| (noun) a pole carrying an overhead microphone projected over a film or tv set | Synonyms: microphone boom |
| (noun) a deep prolonged loud noise | Synonyms: roar, roaring, thunder |
| (noun) a sudden happening that brings good fortune (as a sudden opportunity to make money) | Synonyms: bonanza, bunce, godsend, gold rush, gravy, manna from heaven, windfall |
| (noun) a state of economic prosperity | - |
| (verb) grow vigorously | Synonyms: expand, flourish, thrive |
| (verb) hit with great force | Synonyms: blast, nail, smash |
| (verb) make a resonant sound, like artillery | Synonyms: din |
| (verb) make a deep hollow sound | Synonyms: boom out |
| (verb) be the case that thunder is being heard | Synonyms: thunder |
| boomer | (noun) a member of the baby boom generation in the 1950s | Synonyms: baby boomer |
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| boomerang | (noun) a miscalculation that recoils on its maker | Synonyms: backfire |
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| (noun) a curved piece of wood; when properly thrown will return to thrower | Synonyms: throw stick, throwing stick |
| (verb) return to the initial position from where it came; like a boomerang | - |
| booming | (adjective) (used of the voice or sound) deep and resonant | Synonyms: stentorian |
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| (adjective) very lively and profitable | Synonyms: burgeoning, flourishing, palmy, prospering, prosperous, roaring, thriving |
| boredom | (noun) the feeling of being bored by something tedious | Synonyms: ennui, tedium |
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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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| bothersome | (adjective) causing irritation or annoyance | Synonyms: annoying, galling, irritating, nettlesome, pesky, pestering, pestiferous, plaguey, plaguy, teasing, vexatious, vexing |
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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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| bridegroom | (noun) a man who has recently been married | Synonyms: groom |
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| (noun) a man participant in his own marriage ceremony | Synonyms: groom |
| broadloom | (adjective) (of rugs or carpets) woven full width | - |
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| (noun) a carpet woven on a wide loom to obviate the need for seams | - |
| bromance | (noun) non-sexual but intense relationship between two men | - |
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| bromate | (noun) a chemical compound that contains the bromate ion. | - |
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| (verb) treat with bromine | Synonyms: brominate |
| (verb) react with bromine | Synonyms: brominate |
| brome | (noun) any of various woodland and meadow grasses of the genus Bromus; native to temperate regions | Synonyms: bromegrass |
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| bromegrass | (noun) any of various woodland and meadow grasses of the genus Bromus; native to temperate regions | Synonyms: brome |
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| bromeosin | (noun) a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures | Synonyms: eosin |
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| bromic | (adjective) relating to or containing bromine (especially pentavalent bromine) | - |
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| bromide | (noun) a trite or obvious remark | Synonyms: banality, cliche, commonplace, platitude |
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| (noun) any of the salts of hydrobromic acid; formerly used as a sedative but now generally replaced by safer drugs | - |
| bromidic | (adjective) given to uttering bromides | - |
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| (adjective) dull and tiresome but with pretensions of significance or originality | Synonyms: corny, platitudinal, platitudinous |
| brominate | (verb) treat with bromine | Synonyms: bromate |
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| (verb) react with bromine | Synonyms: bromate |
| bromine | (noun) a nonmetallic heavy volatile corrosive dark brown liquid element belonging to the halogens; found in sea water | Synonyms: atomic number 35, Br |
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| bromoform | (noun) colorless liquid haloform CHBr3 | Synonyms: tribromomethane |
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| bromoil | (noun) a print made by the bromoil process having soft, paint-like qualities. | - |
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| broom | (noun) a cleaning implement for sweeping; bundle of straws or twigs attached to a long handle | - |
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| (noun) any of various shrubs of the genera Cytisus or Genista or Spartium having long slender branches and racemes of yellow flowers | - |
| (noun) common Old World heath represented by many varieties; low evergreen grown widely in the Northern Hemisphere | Synonyms: Calluna vulgaris, heather, ling, Scots heather |
| (verb) sweep with a broom or as if with a broom | Synonyms: sweep |
| (verb) finish with a broom | - |
| broomcorn | (noun) tall grasses grown for the elongated stiff-branched panicle used for brooms and brushes | Synonyms: Sorghum vulgare technicum |
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| broomstick | (noun) the handle of a broom | Synonyms: broom handle |
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| broomweed | (noun) annual of southwestern United States having rigid woody branches with sticky foliage and yellow flowers | Synonyms: broom-weed, Gutierrezia texana |
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| buncombe | (noun) unacceptable behavior (especially ludicrously false statements) | Synonyms: bunk, bunkum, guff, hogwash, rot |
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| bunglesome | (adjective) difficult to handle or manage especially because of shape | Synonyms: awkward, clumsy, ungainly |
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| burdensome | (adjective) not easily borne; wearing | Synonyms: onerous, taxing |
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| burdensomeness | (noun) unwelcome burdensome difficulty | Synonyms: heaviness, onerousness, oppressiveness |
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| burgomaster | (noun) a mayor of a municipality in Germany or Holland or Flanders or Austria | - |
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| businesswoman | (noun) a female businessperson | - |
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| buxom | (adjective) (of a female body) healthily plump and vigorous | Synonyms: zaftig, zoftig |
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| (adjective) (of a woman's body) having a large bosom and pleasing curves | Synonyms: bosomy, busty, curvaceous, curvy, full-bosomed, sonsie, sonsy, stacked, voluptuous, well-endowed |
| buxomly | (adverb) in a curvaceous way | Synonyms: curvaceously |
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| buxomness | (noun) the bodily property of being attractively plump and vigorous and (of women) full-bosomed | - |
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| cacomistle | (noun) raccoon-like omnivorous mammal of Mexico and the southwestern United States having a long bushy tail with black and white rings | Synonyms: Bassariscus astutus, bassarisk, cacomixle, civet cat, coon cat, miner's cat, raccoon fox, ring-tailed cat, ringtail |
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| cacomixle | (noun) raccoon-like omnivorous mammal of Mexico and the southwestern United States having a long bushy tail with black and white rings | Synonyms: Bassariscus astutus, bassarisk, cacomistle, civet cat, coon cat, miner's cat, raccoon fox, ring-tailed cat, ringtail |
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| callosectomy | (noun) severing the corpus callosum so that communication between the cerebral hemispheres is interrupted (in cases of severe intractable epilepsy) | Synonyms: callosotomy |
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| callosotomy | (noun) severing the corpus callosum so that communication between the cerebral hemispheres is interrupted (in cases of severe intractable epilepsy) | Synonyms: callosectomy |
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| calomel | (noun) a tasteless colorless powder used medicinally as a cathartic | Synonyms: mercurous chloride |
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| calosoma | (noun) any beetle of the genus Calosoma | - |
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| camomile | (noun) Eurasian plant with apple-scented foliage and white-rayed flowers and feathery leaves used medicinally; in some classification systems placed in genus Anthemis | Synonyms: Anthemis nobilis, Chamaemelum nobilis, chamomile |
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| carbomycin | (noun) a colorless basic antibiotic that inhibits the growth of Gram-positive organisms | - |
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| carcinoma | (noun) any malignant tumor derived from epithelial tissue; one of the four major types of cancer | - |
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| carcinomatous | (adjective) being or relating to carcinoma | - |
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| carcinosarcoma | (noun) a malignant neoplasm composed of carcinoma and sarcoma extensively intermixed | - |
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| cardamom | (noun) aromatic seeds used as seasoning like cinnamon and cloves especially in pickles and barbecue sauces | Synonyms: cardamon, cardamum |
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| (noun) rhizomatous herb of India having aromatic seeds used as seasoning | Synonyms: cardamon, Elettaria cardamomum |
| cardiomegaly | (noun) an abnormal enlargement of the heart | Synonyms: enlarged heart, megacardia, megalocardia |
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| cardiomyopathy | (noun) a disorder (usually of unknown origin) of the heart muscle (myocardium) | Synonyms: myocardiopathy |
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| cardroom | (noun) a room for gambling on card games | - |
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| carom | (noun) a shot in billiards in which the cue ball contacts one object ball and then the other | Synonyms: cannon |
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| (noun) a glancing rebound | Synonyms: ricochet |
| (verb) make a carom | - |
| (verb) rebound after hitting | - |
| catacomb | (noun) an underground tunnel with recesses where bodies were buried (as in ancient Rome) | - |
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| catadromous | (adjective) migrating from fresh water to the sea to spawn | - |
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| catostomid | (noun) a cypriniform fish of the family Catostomidae | - |
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| celioma | (noun) an abdominal tumor | - |
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| celom | (noun) a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity | Synonyms: celoma, coelom |
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| celoma | (noun) a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity | Synonyms: celom, coelom |
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| centromere | (noun) a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape | Synonyms: kinetochore |
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| centromeric | (adjective) pertaining to the dense specialized portion of a chromosome to which the spindle attaches during mitosis | - |
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| centrosome | (noun) small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules | Synonyms: central body |
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| centrosomic | (adjective) of or relating to a centrosome | - |
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| cephalhematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalohematoma |
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| cephalohematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalhematoma |
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| cephalometry | (noun) measurement of human heads | - |
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