| billhook | (noun) a cutting tool with a sharp edge | Synonyms: bill |
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| billiards | (noun) any of several games played on rectangular cloth-covered table (with cushioned edges) in which long tapering cue sticks are used to propel ivory (or composition) balls | - |
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| billing | (noun) request for payment of a debt | Synonyms: charge |
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| billingsgate | (noun) foul-mouthed or obscene abuse | Synonyms: scurrility |
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| billion | (noun) the number that is represented as a one followed by 9 zeros | Synonyms: 1000000000, one thousand million |
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| (noun) the number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen | Synonyms: 1000000000000, one million million |
| (noun) a very large indefinite number (usually hyperbole) | Synonyms: bazillion, gazillion, jillion, million, trillion, zillion |
| billionaire | (noun) a very rich person whose material wealth is valued at more than a billion dollars | - |
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| billionth | (noun) one part in a billion equal parts | Synonyms: one-billionth |
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| (noun) position 1,000,000,000 in a countable series of things | - |
| billow | (noun) a large sea wave | Synonyms: surge |
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| billy | (noun) male goat | Synonyms: billy goat, he-goat |
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| (noun) a short stout club used primarily by policemen | Synonyms: baton, billy club, billystick, nightstick, truncheon |
| billyo | (noun) an unimaginably large amount | Synonyms: all get out, billy-ho, billyoh |
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| billyoh | (noun) an unimaginably large amount | Synonyms: all get out, billy-ho, billyo |
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| billystick | (noun) a short stout club used primarily by policemen | Synonyms: baton, billy, billy club, nightstick, truncheon |
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| bilocation | (noun) the ability (said of certain Roman Catholic saints) to exist simultaneously in two locations | - |
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| bilsted | (noun) a North American tree of the genus Liquidambar having prickly spherical fruit clusters and fragrant sap | Synonyms: American sweet gum, Liquidambar styraciflua, red gum, sweet gum, sweet gum tree |
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| biltong | (noun) meat that is salted and cut into strips and dried in the sun | - |
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| bimbo | (noun) a young woman indulged by rich and powerful older men | - |
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| bimester | (noun) a period of 2 months | - |
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| bimetal | (noun) material made by bonding together sheets of two different metals | - |
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| bimetallism | (noun) a monetary standard under which the basic unit of currency is defined by stated amounts of two metals (usually gold and silver) with values set at a predetermined ratio | - |
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| bimetallist | (noun) an advocate of bimetallism | - |
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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 |
| bimli | (noun) valuable fiber plant of East Indies now widespread in cultivation | Synonyms: bimli hemp, Bombay hemp, deccan hemp, Hibiscus cannabinus, Indian hemp, kanaf, kenaf |
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| bimonthly | (noun) a periodical that is published twice a month or every two months (either 24 or 6 issues per year) | - |
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| bin | (noun) a container; usually has a lid | - |
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| (noun) the quantity contained in a bin | Synonyms: binful |
| binary | (noun) a pre-compiled, pre-linked program that is ready to run under a given operating system; a binary for one operating system will not run on a different operating system | Synonyms: binary program |
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| (noun) a system of two stars that revolve around each other under their mutual gravitation | Synonyms: binary star, double star |
| bind | (noun) something that hinders as if with bonds | - |
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| binder | (noun) something used to tie or bind | Synonyms: ligature |
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| (noun) holds loose papers or magazines | Synonyms: ring-binder |
| (noun) a machine that cuts grain and binds it in sheaves | Synonyms: reaper binder |
| (noun) something used to bind separate particles together or facilitate adhesion to a surface | - |
| bindery | (noun) a workshop where books are bound | - |
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| binding | (noun) the act of applying a bandage | Synonyms: bandaging, dressing |
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| (noun) the protective covering on the front, back, and spine of a book | Synonyms: back, book binding, cover |
| (noun) strip sewn over or along an edge for reinforcement or decoration | - |
| (noun) one of a pair of mechanical devices that are attached to a ski and that will grip a ski boot; the bindings should release in case of a fall | Synonyms: ski binding |
| (noun) the capacity to attract and hold something | - |
| bindweed | (noun) any of several vines of the genera Convolvulus and Calystegia having a twining habit | - |
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| bine | (noun) European twining plant whose flowers are used chiefly to flavor malt liquors; cultivated in America | Synonyms: common hop, common hops, European hop, Humulus lupulus |
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| binful | (noun) the quantity contained in a bin | Synonyms: bin |
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| binge | (noun) an occasion for excessive eating or drinking | Synonyms: bout, bust, tear |
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| (noun) any act of immoderate indulgence | Synonyms: orgy, splurge |
| binger | (noun) someone addicted to crack cocaine | Synonyms: crack addict |
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| bingle | (noun) a base hit on which the batter stops safely at first base | Synonyms: single |
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| bingo | (noun) a game in which numbered balls are drawn at random and players cover the corresponding numbers on their cards | Synonyms: beano, keno, lotto |
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| binnacle | (noun) a nonmagnetic housing for a ship's compass (usually in front of the helm) | - |
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| binoculars | (noun) (plural) an optical instrument designed for simultaneous use by both eyes | Synonyms: field glasses, opera glasses |
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| binomial | (noun) (mathematics) a quantity expressed as a sum or difference of two terms; a polynomial with two terms | - |
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| binturong | (noun) arboreal civet of Asia having a long prehensile tail and shaggy black hair | Synonyms: Arctictis bintourong, bearcat |
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| bioarm | (noun) any weapon usable in biological warfare | Synonyms: biological weapon, bioweapon |
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| bioassay | (noun) appraisal of the biological activity of a substance by testing its effect on an organism and comparing the result with some agreed standard | Synonyms: bio-assay |
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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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| biocatalyst | (noun) a biochemical catalyst such as an enzyme | - |
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| biochemist | (noun) someone with special training in biochemistry | - |
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| biochemistry | (noun) the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry | - |
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| biochip | (noun) a microchip that uses tiny strands of DNA to latch onto and quickly recognize thousands of genes at a time; intended for use in a biological environment | - |
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| bioclimatology | (noun) the study of effects of climate on living organisms | - |
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| 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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| biodiversity | (noun) the diversity of plant and animal life in a particular habitat (or in the world as a whole) | - |
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| biodynamics | (noun) the branch of biology dealing with energy or the activity of living organisms. | - |
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| bioelectricity | (noun) electric phenomena in animals or plants | - |
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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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| bioethics | (noun) the branch of ethics that studies moral values in the biomedical sciences | - |
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| biofeedback | (noun) a training program in which a person is given information about physiological processes (heart rate or blood pressure) that is not normally available with the goal of gaining conscious control of them | - |
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| bioflavinoid | (noun) a vitamin that maintains the resistance of cell and capillary walls to permeation | Synonyms: citrin, vitamin P |
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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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| biogeography | (noun) dealing with the geographical distribution of animals and plants | - |
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| biographer | (noun) someone who writes an account of a person's life | - |
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| biographism | (noun) reduction of textual meaning to authorial biography. | - |
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| biography | (noun) an account of the series of events making up a person's life | Synonyms: life, life history, life story |
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| biohazard | (noun) any bacterium or virus or toxin that could be used in biological warfare | Synonyms: biological agent |
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| (noun) hazard to humans or the environment resulting from biological agents or conditions | - |
| biologism | (noun) use of biological principles in explaining human especially social behavior | - |
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| biologist | (noun) (biology) a scientist who studies living organisms | Synonyms: life scientist |
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| biology | (noun) the science that studies living organisms | Synonyms: biological science |
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| (noun) all the plant and animal life of a particular region | Synonyms: biota |
| (noun) characteristic life processes and phenomena of living organisms | - |
| bioluminescence | (noun) luminescence produced by physiological processes (as in the firefly) | - |
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| biomass | (noun) the total mass of living matter in a given unit area | - |
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| (noun) plant materials and animal waste used as fuel | - |
| biome | (noun) a major biotic community characterized by the dominant forms of plant life and the prevailing climate | - |
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| biomedicine | (noun) the branch of medical science that studies the ability of organisms to withstand environmental stress (as in space travel) | - |
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| (noun) the branch of medical science that applies biological and physiological principles to clinical practice | - |
| biometrics | (noun) a branch of biology that studies biological phenomena and observations by means of statistical analysis | Synonyms: biometry, biostatistics |
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| biometry | (noun) a branch of biology that studies biological phenomena and observations by means of statistical analysis | Synonyms: biometrics, biostatistics |
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| bionics | (noun) application of biological principles to the study and design of engineering systems (especially electronic systems) | - |
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| bionomics | (noun) the branch of biology concerned with the relations between organisms and their environment | Synonyms: ecology, environmental science |
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| biont | (noun) a discrete unit of living matter | - |
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| biophysicist | (noun) a physicist who applies the methods of physics to biology | - |
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| biophysics | (noun) physics as applied to biological problems | - |
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| biopiracy | (noun) biological theft; illegal collection of indigenous plants by corporations who patent them for their own use | - |
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| biopsy | (noun) examination of tissues or liquids from the living body to determine the existence or cause of a disease | - |
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| bioremediation | (noun) the act of treating waste or pollutants by the use of microorganisms (as bacteria) that can break down the undesirable substances | - |
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| (noun) the branch of biotechnology that uses biological process to overcome environmental problems | - |
| biosafety | (noun) safety from exposure to infectious agents | - |
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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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| bioscope | (noun) a kind of early movie projector | - |
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| (noun) a South African movie theater | - |
| biosphere | (noun) the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist | - |
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| biostatistics | (noun) a branch of biology that studies biological phenomena and observations by means of statistical analysis | Synonyms: biometrics, biometry |
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| biosynthesis | (noun) production of a chemical compound by a living organism | Synonyms: biogenesis |
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| biosystematics | (noun) use of data (e.g. cytogenetic or biochemical) to assess taxonomic relations especially within an evolutionary framework | Synonyms: biosystematy |
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| biosystematy | (noun) use of data (e.g. cytogenetic or biochemical) to assess taxonomic relations especially within an evolutionary framework | Synonyms: biosystematics |
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| biota | (noun) all the plant and animal life of a particular region | Synonyms: biology |
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| biotech | (noun) the branch of molecular biology that studies the use of microorganisms to perform specific industrial processes | Synonyms: biotechnology |
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| biotechnology | (noun) the branch of engineering science in which biological science is used to study the relation between workers and their environments | Synonyms: bioengineering, ergonomics |
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| (noun) the branch of molecular biology that studies the use of microorganisms to perform specific industrial processes | Synonyms: biotech |
| bioterrorism | (noun) terrorism using the weapons of biological warfare | Synonyms: biological terrorism |
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| biotin | (noun) a B vitamin that aids in body growth | Synonyms: vitamin H |
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| biotite | (noun) dark brown to black mica found in igneous and metamorphic rock | - |
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| biotype | (noun) organisms sharing a specified genotype or the genotype (or peculiarities) so shared | - |
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| bioweapon | (noun) any weapon usable in biological warfare | Synonyms: bioarm, biological weapon |
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| biped | (noun) an animal with two feet | - |
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| bipedalism | (noun) the bodily attribute of being bipedal; having two feet | - |
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