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biographer a person who writes biography.
biographical of or relating to the facts and circumstances of a person's life. [2 definitions]
biography an account, usu. written, of the facts and circumstances of one person's life. [3 definitions]
biohazard a biological substance or condition that endangers human life or health.
biological of or pertaining to biology.
biological warfare the use of living organisms such as bacteria or viruses to kill or disable people or destroy their food supply.
biologist a scientist who specializes in biology.
biology the science that is concerned with the growth, development, and functioning of living things. [3 definitions]
bioluminescence the emission of light produced naturally by certain kinds of insects, fish, or bacteria, or such light itself.
biomagnetism the scientific study of the effects of magnetic forces on biological systems.
biomass the quantity of living matter in a particular habitat measured by weight of organisms per unit of habitat area or by weight or volume of organisms per unit of habitat volume.
biomedicine the branch of medicine concerned with human survival and functioning in abnormal environmental conditions.
biometrics (used with a sing. verb) the mathematical and statistical analysis of biological data.
bionic consisting of or supplemented by electronic or mechanical devices. [3 definitions]
bionics (used with a sing. verb) the application of biological functions and mechanisms to the study and design of engineering devices and systems.
biophysics (used with a sing. verb) the branch of biology in which the principles and methods of physics are applied to the study of biological forms and processes.
biopsy the cutting of tissue from an animal or person for study, esp. in seeking evidence of disease.
biorhythm an inherent rhythm or cycle in a biological function or process. [2 definitions]
bioscopy the medical examination of a body to establish whether it is dead or alive.
biosphere the part of the earth and its atmosphere in which living organisms can exist.
biotech a short form of biotechnology.