| benediction | (noun) the act of praying for divine protection | Synonyms: blessing |
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| (noun) a ceremonial prayer invoking divine protection | Synonyms: blessing |
| benefaction | (noun) an act intending or showing kindness and good will | Synonyms: benevolence |
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| (noun) a contribution of money or assistance | - |
| benefactor | (noun) a person who helps people or institutions (especially with financial help) | Synonyms: helper |
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| benefactress | (noun) a woman benefactor | - |
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| benefice | (noun) an endowed church office giving income to its holder | Synonyms: ecclesiastical benefice |
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| beneficence | (noun) the quality of being kind or helpful or generous | - |
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| (noun) doing good; feeling beneficent | - |
| beneficiary | (noun) the semantic role of the intended recipient who benefits from the happening denoted by the verb in the clause | Synonyms: benefactive role |
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| (noun) the recipient of funds or other benefits | Synonyms: donee |
| beneficiation | (noun) crushing and separating ore into valuable substances or waste by any of a variety of techniques | Synonyms: mineral dressing, mineral extraction, mineral processing, ore dressing, ore processing |
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| benefit | (noun) something that aids or promotes well-being | Synonyms: welfare |
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| (noun) a performance to raise money for a charitable cause | - |
| (noun) financial assistance in time of need | - |
| benevolence | (noun) an act intending or showing kindness and good will | Synonyms: benefaction |
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| (noun) an inclination to do kind or charitable acts | - |
| (noun) disposition to do good | - |
| benignancy | (noun) the quality of being kind and gentle | Synonyms: benignity, graciousness |
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| benignity | (noun) a kind act | Synonyms: kindness |
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| (noun) the quality of being kind and gentle | Synonyms: benignancy, graciousness |
| benison | (noun) a spoken blessing | - |
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| benjamin | (noun) gum resin used especially in treating skin irritation | Synonyms: asa dulcis, benzoin, gum benjamin, gum benzoin |
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| benne | (noun) East Indian annual erect herb; source of sesame seed or benniseed and sesame oil | Synonyms: benni, benny, sesame, Sesamum indicum |
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| bennet | (noun) North American white-flowered avens | Synonyms: Geum canadense, white avens |
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| (noun) avens of Virginia having pale or greenish yellow flowers | Synonyms: Geum virginianum, white avens |
| benni | (noun) East Indian annual erect herb; source of sesame seed or benniseed and sesame oil | Synonyms: benne, benny, sesame, Sesamum indicum |
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| bennie | (noun) a form of amphetamine | Synonyms: Benzedrine |
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| benniseed | (noun) small oval seeds of the sesame plant | Synonyms: sesame seed |
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| benny | (noun) East Indian annual erect herb; source of sesame seed or benniseed and sesame oil | Synonyms: benne, benni, sesame, Sesamum indicum |
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| bent | (noun) a special way of doing something | Synonyms: hang, knack |
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| (noun) a relatively permanent inclination to react in a particular way | Synonyms: set |
| (noun) an area of grassland unbounded by fences or hedges | - |
| (noun) grass for pastures and lawns especially bowling and putting greens | Synonyms: bent-grass, bent grass |
| benthos | (noun) organisms (plants and animals) that live at or near the bottom of a sea, lake, river or stream | - |
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| (noun) a region including the bottom of the sea and the littoral zones | Synonyms: benthic division, benthonic zone |
| bentonite | (noun) an absorbent aluminum silicate clay formed from volcanic ash | - |
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| bentwood | (noun) wood that is steamed until it becomes pliable and then is shaped for use in making furniture | - |
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| benweed | (noun) widespread European weed having yellow daisylike flowers; sometimes an obnoxious weed and toxic to cattle if consumed in quantity | Synonyms: ragweed, ragwort, Senecio jacobaea, tansy ragwort |
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| benzene | (noun) a colorless liquid hydrocarbon; highly flammable; carcinogenic; the simplest of the aromatic compounds | Synonyms: benzine, benzol |
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| benzine | (noun) a colorless liquid hydrocarbon; highly flammable; carcinogenic; the simplest of the aromatic compounds | Synonyms: benzene, benzol |
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| benzoate | (noun) any salt or ester of benzoic acid | - |
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| benzocaine | (noun) a white crystalline ester used as a local anesthetic | Synonyms: ethyl aminobenzoate |
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| benzodiazepine | (noun) any of several similar lipophilic amines used as tranquilizers or sedatives or hypnotics or muscle relaxants; chronic use can lead to dependency | - |
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| benzofuran | (noun) a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins | Synonyms: coumarone, cumarone |
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| benzoin | (noun) gum resin used especially in treating skin irritation | Synonyms: asa dulcis, benjamin, gum benjamin, gum benzoin |
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| benzol | (noun) a colorless liquid hydrocarbon; highly flammable; carcinogenic; the simplest of the aromatic compounds | Synonyms: benzene, benzine |
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| benzoquinone | (noun) any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes | Synonyms: quinone |
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| benzyl | (noun) the univalent radical derived from toluene | Synonyms: benzyl group, benzyl radical |
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| benzylpenicillin | (noun) the penicillin that constitutes the principal component of many commercial antibiotics | Synonyms: penicillin G |
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| bereavement | (noun) state of sorrow over the death or departure of a loved one | Synonyms: mourning |
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| bergenia | (noun) any plant of the genus Bergenia; valued as an evergreen ground cover and for the spring blossoms | - |
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| bestowment | (noun) the act of conferring an honor or presenting a gift | Synonyms: bestowal, conferment, conferral |
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| (noun) a gift that is bestowed or conferred | Synonyms: bestowal |
| betterment | (noun) the act of relieving ills and changing for the better | Synonyms: amelioration, melioration |
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| (noun) a change for the better; progress in development | Synonyms: advance, improvement |
| (noun) an improvement that adds to the value of a property or facility | - |
| betweenbrain | (noun) the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon | Synonyms: diencephalon, interbrain, thalmencephalon |
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| bewilderment | (noun) confusion resulting from failure to understand | Synonyms: bafflement, befuddlement, bemusement, mystification, obfuscation, puzzlement |
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| bewitchment | (noun) a magical spell | Synonyms: enchantment |
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| bicentenary | (noun) the 200th anniversary (or the celebration of it) | Synonyms: bicentennial |
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| bicentennial | (noun) the 200th anniversary (or the celebration of it) | Synonyms: bicentenary |
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| biennial | (noun) (botany) a plant having a life cycle that normally takes two seasons from germination to death to complete; flowering biennials usually bloom and fruit in the second season | - |
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| bimillenary | (noun) a span of 2000 years | Synonyms: bimillennium |
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| (noun) the 2000th anniversary (or the celebration of it) | Synonyms: bimillennium |
| bimillennium | (noun) a span of 2000 years | Synonyms: bimillenary |
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| (noun) the 2000th anniversary (or the celebration of it) | Synonyms: bimillenary |
| biodefence | (noun) procedures involved in taking defensive measures against attacks using biological agents | Synonyms: biodefense, biological defence, biological defense |
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| biodefense | (noun) procedures involved in taking defensive measures against attacks using biological agents | Synonyms: biodefence, biological defence, biological defense |
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| bioengineering | (noun) the branch of engineering science in which biological science is used to study the relation between workers and their environments | Synonyms: biotechnology, ergonomics |
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| biogenesis | (noun) the production of living organisms from other living organisms | Synonyms: biogeny |
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| (noun) production of a chemical compound by a living organism | Synonyms: biosynthesis |
| biogeny | (noun) the production of living organisms from other living organisms | Synonyms: biogenesis |
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| bioluminescence | (noun) luminescence produced by physiological processes (as in the firefly) | - |
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| bioscience | (noun) any of the branches of natural science dealing with the structure and behavior of living organisms | Synonyms: life science |
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| birefringence | (noun) splitting a ray into two parallel rays polarized perpendicularly | Synonyms: double refraction |
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| bitumen | (noun) any of various naturally occurring impure mixtures of hydrocarbons | - |
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| bizarreness | (noun) strikingly out of the ordinary | Synonyms: outlandishness, weirdness |
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| blackening | (noun) changing to a darker color | Synonyms: darkening |
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| blandishment | (noun) the act of urging by means of teasing or flattery | Synonyms: wheedling |
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| (noun) flattery intended to persuade | Synonyms: cajolery, palaver |
| blastogenesis | (noun) theory that inherited characteristics are transmitted by germ plasm | - |
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| (noun) asexual reproduction by budding | - |
| blend | (noun) the act of blending components together thoroughly | Synonyms: blending |
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| (noun) a new word formed by joining two others and combining their meanings | Synonyms: portmanteau, portmanteau word |
| (noun) an occurrence of thorough mixing | - |
| blende | (noun) an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form | Synonyms: sphalerite, zinc blende |
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| blender | (noun) an electrically powered mixer with whirling blades that mix or chop or liquefy foods | Synonyms: liquidiser, liquidizer |
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| blending | (noun) a gradation involving small or imperceptible differences between grades | Synonyms: shading |
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| (noun) the act of blending components together thoroughly | Synonyms: blend |
| blennioid | (noun) elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins | Synonyms: blennioid fish |
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| blenny | (noun) small usually scaleless fishes with comb-like teeth living about rocky shores; are territorial and live in holes between rocks | Synonyms: combtooth blenny |
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| blitheness | (noun) a feeling of spontaneous good spirits | Synonyms: cheerfulness |
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| blueness | (noun) blue color or pigment; resembling the color of the clear sky in the daytime | Synonyms: blue |
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| bluenose | (noun) a native or inhabitant of Nova Scotia | Synonyms: Nova Scotian |
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| 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 |
| bookend | (noun) a support placed at the end of a row of books to keep them upright (on a shelf or table) | - |
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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 |
| 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 |
| boyfriend | (noun) a man who is the lover of a man or woman | Synonyms: beau, fellow, swain |
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| boysenberry | (noun) large raspberry-flavored fruit; cross between blackberries and raspberries | - |
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| (noun) cultivated hybrid bramble of California having large dark wine-red fruit with a flavor resembling raspberries | Synonyms: boysenberry bush |
| bracken | (noun) large coarse fern often several feet high; essentially weed ferns; cosmopolitan | Synonyms: brake, pasture brake, Pteridium aquilinum |
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| (noun) fern of southeastern Asia; not hardy in cold temperate regions | Synonyms: Pteridium esculentum |
| braveness | (noun) a quality of spirit that enables you to face danger or pain without showing fear | Synonyms: bravery, courage, courageousness |
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| brazenness | (noun) behavior marked by a bold defiance of the proprieties and lack of shame | Synonyms: shamelessness |
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| breakableness | (noun) the consistency of something that breaks under pressure | - |
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| brent | (noun) small dark geese that breed in the north and migrate southward | Synonyms: brant, brant goose, brent goose |
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| brethren | (noun) (plural) the lay members of a male religious order | - |
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| brittleness | (noun) firm but easily broken | Synonyms: crispiness, crispness |
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| broadening | (noun) the action of making broader | - |
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| (noun) the act of making something wider | Synonyms: widening |
| (noun) an increase in width | Synonyms: widening |
| brokenheartedness | (noun) intense sorrow caused by loss of a loved one (especially by death) | Synonyms: grief, heartache, heartbreak |
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| brusqueness | (noun) an abrupt discourteous manner | Synonyms: abruptness, curtness, gruffness, shortness |
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| buckminsterfullerene | (noun) a spheroidal fullerene; the first known example of a fullerene | Synonyms: buckyball |
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| bullpen | (noun) a large cell where prisoners (people awaiting trial or sentence or refugees or illegal immigrants) are confined together temporarily | Synonyms: detention cell, detention centre |
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| (noun) a place on a baseball field where relief pitchers can warm up during a game | - |
| bunsen | (noun) a gas burner used in laboratories; has an air valve to regulate the mixture of gas and air | Synonyms: bunsen burner, etna |
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| burden | (noun) weight to be borne or conveyed | Synonyms: load, loading |
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| (noun) the central idea that is expanded in a document or discourse | - |
| (noun) an onerous or difficult concern | Synonyms: encumbrance, incumbrance, load, onus |
| (noun) the central meaning or theme of a speech or literary work | Synonyms: core, effect, essence, gist |
| burdensomeness | (noun) unwelcome burdensome difficulty | Synonyms: heaviness, onerousness, oppressiveness |
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| burthen | (noun) a variant of `burden' | - |
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| businessmen | (noun) the body of individuals who manage businesses | Synonyms: business community |
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| butadiene | (noun) a gaseous hydrocarbon C4H6; used in making synthetic rubbers | - |
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| butene | (noun) any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers | Synonyms: butylene |
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| butylene | (noun) any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers | Synonyms: butene |
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| cacogenesis | (noun) inability to produce hybrids that are both viable and fertile | - |
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| cacogenics | (noun) the study of the operation of factors causing degeneration in the type of offspring produced | Synonyms: dysgenics |
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| cadence | (noun) a recurrent rhythmical series | Synonyms: cadency |
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| (noun) the close of a musical section | - |
| (noun) (prosody) the accent in a metrical foot of verse | Synonyms: beat, measure, meter, metre |
| cadency | (noun) a recurrent rhythmical series | Synonyms: cadence |
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