| abiogenesis | (noun) a hypothetical organic phenomenon by which living organisms are created from nonliving matter | Synonyms: autogenesis, autogeny, spontaneous generation |
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| abiogenetic | (adjective) originating by abiogenesis | - |
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| abiogenist | (noun) a believer in abiogenesis | - |
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| abiotrophy | (noun) a loss of vitality and a degeneration of cells and tissues not due to any apparent injury | - |
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| aerobiosis | (noun) life sustained in the presence of air or oxygen | - |
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| aerobiotic | (adjective) living or active only in the presence of oxygen | - |
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| agrobiologic | (adjective) of or pertaining to agrobiology | Synonyms: agrobiological |
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| agrobiological | (adjective) of or pertaining to agrobiology | Synonyms: agrobiologic |
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| agrobiology | (noun) the study of plant nutrition and growth especially as a way to increase crop yield | - |
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| amebiosis | (noun) infection by a disease-causing ameba | Synonyms: amebiasis, amoebiasis, amoebiosis |
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| amoebiosis | (noun) infection by a disease-causing ameba | Synonyms: amebiasis, amebiosis, amoebiasis |
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| amphibiotic | (adjective) having an aquatic early or larval form and a terrestrial adult form | Synonyms: semiaquatic |
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| amphibious | (adjective) operating or living on land and in water | - |
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| (adjective) relating to or characteristic of animals of the class Amphibia | Synonyms: amphibian |
| anabiosis | (noun) suspended animation in organisms during periods of extreme drought from which they revive when moisture returns | - |
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| anabiotic | (adjective) of or related to the state of anabiosis | - |
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| anaerobiotic | (adjective) living or active in the absence of free oxygen | Synonyms: anaerobic |
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| antibiosis | (noun) an association between organisms that is harmful to one of them or between organisms and a metabolic product of another | - |
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| antibiotic | (adjective) of or relating to antibiotic drugs | - |
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| (noun) a chemical substance derivable from a mold or bacterium that can kill microorganisms and cure bacterial infections | Synonyms: antibiotic drug |
| astrobiology | (noun) the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life | Synonyms: exobiology, space biology |
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| autobiographer | (noun) someone who writes their own biography | - |
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| autobiographic | (adjective) relating to or in the style of an autobiography | Synonyms: autobiographical |
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| (adjective) of or relating to or characteristic of an autobiographer | Synonyms: autobiographical |
| autobiographical | (adjective) relating to or in the style of an autobiography | Synonyms: autobiographic |
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| (adjective) of or relating to or characteristic of an autobiographer | Synonyms: autobiographic |
| autobiography | (noun) a biography of yourself | - |
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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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| (verb) subject to a bio-assay | - |
| 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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| biocatalytic | (adjective) of or relating to biocatalysts | - |
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| biochemical | (adjective) of or relating to biochemistry; involving chemical processes in living organisms | - |
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| biochemically | (adverb) with respect to biochemistry | - |
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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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| bioclimatic | (adjective) of or concerned with the relations of climate and living organisms | - |
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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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| biodegradable | (adjective) capable of being decomposed by e.g. bacteria | - |
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| biodegrade | (verb) break down naturally through the action of biological agents | - |
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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 |
| biogenetic | (adjective) of or relating to the production of living organisms from other living organisms | - |
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| biogenic | (adjective) produced by living organisms or biological processes | - |
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| (adjective) essential for maintaining the fundamental life processes | - |
| biogenous | (adjective) producing or produced by living things | - |
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| biogeny | (noun) the production of living organisms from other living organisms | Synonyms: biogenesis |
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| biogeographic | (adjective) of or relating to or involved with biogeography | Synonyms: biogeographical |
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| biogeographical | (adjective) of or relating to or involved with biogeography | Synonyms: biogeographic |
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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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| biographic | (adjective) of or relating to or being biography | Synonyms: biographical |
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| biographical | (adjective) of or relating to or being biography | Synonyms: biographic |
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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 | - |
| biologic | (adjective) pertaining to biology or to life and living things | Synonyms: biological |
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| biological | (adjective) (of a parent or child) related by blood; genetically related | Synonyms: natural |
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| (adjective) pertaining to biology or to life and living things | Synonyms: biologic |
| biologically | (adverb) with respect to biology | - |
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| 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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| biologistic | (adjective) of or relating to biologism | - |
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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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| bioluminescent | (adjective) (of living organisms) emitting light | - |
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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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| biomedical | (adjective) relating to the activities and applications of science to clinical medicine | - |
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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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| bionic | (adjective) of or relating to bionics | - |
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| (adjective) having particular physiological functions augmented or replaced by electronic or electromechanical components | - |
| bionics | (noun) application of biological principles to the study and design of engineering systems (especially electronic systems) | - |
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| bionomic | (adjective) of or relating to the science of ecology | Synonyms: bionomical, ecologic, ecological |
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| bionomical | (adjective) of or relating to the science of ecology | Synonyms: bionomic, ecologic, ecological |
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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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| biosynthetic | (adjective) of or relating to biosynthesis | - |
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| biosystematic | (adjective) of or relating to biosystematics | - |
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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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