| biotope | 1. <ecology> The smallest unit of habitat where all environmental conditions and all types of organisms found within it are the same throughout. 2. <microbiology> The location of a parasite within the host's body. (19 Jan 1998) |
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| biotoxicology | The study of poisons produced by living organisms. (05 Mar 2000) |
| biotoxin | <protein> A toxin (a poison) which originates from a living thing (a plant, animal, fungi, bacteria, etc.) (09 Oct 1997) |
| biotransformation | <biochemistry> The series of chemical alterations of a compound (for example, a drug) which occur within the body, as by enzymatic activity. (18 Nov 1997) |
| biotron | <apparatus> A chamber used for biological experiments. In it, environmental conditions can be completely controlled, thus allowing researchers to test the effects of environmental changes on organisms. (19 Jan 1998) |
| biotroph | <biology> An organism which cannot survive or reproduce unless it is on another organism. For example: fleas. (19 Jan 1998) |
| biotropism | An obsolete term for a theory that a drug eruption may be due to activation of a latent allergy by the drug. Origin: bio-+ G. Trope, a turning (05 Mar 2000) |
| biotype | 1. <biology, genetics> A population where all individuals are genetically identical. 2. <ecology> A particular physiological or anatomical characteristic of an organism adapted to and living in a specific type of environment, distinctive from the same species of the organism adapted to a different type of environment. (19 Jan 1998) |