A poisonous fluid secreted by snakes, spiders, scorpions, etc. [M. Eng. and O. Fr. venim, fr. L. venenum, poison]
- kokoi v. a potent neurotoxin found in the frog Phyllobates bicolor; it is a nonprotein compound with a molecular weight of approximately 400, and is lethal in microgram quantities.
- Russell's viper v. a v. derived from Russell's viper (Vipera russelli), which acts as an intrinsic thromboplastin; used in the laboratory evaluation of deficiencies of factor X or topically to arrest local hemorrhage in hemophilia.
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ven·om 'ven-əm n poisonous matter normally secreted by some animals (as snakes, scorpions, or bees) and transmitted to prey or an enemy chiefly by biting or stinging
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n.
the poisonous material produced by snakes, scorpions, spiders, and other animals for injecting into their prey or enemies. Some venoms produce no more than local pain and swelling; others produce more general effects and can prove lethal.
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ven·om (venґəm) [L. venenum poison] a poison, especially one secreted by an animal such as a snake or arthropod.Medical dictionary. 2011.