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Medical Dictionary

bug

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noun \ˈbəg\

Medical Definition of bug

  1. 1a:  an insect or other creeping or crawling invertebrate animal (as a spider)—not used technicallyb:  any of various insects commonly considered especially obnoxious: as:  bedbug:  cockroach:  head lousec:  any of the order Hemiptera and especially of its suborder Heteroptera of insects that have sucking mouthparts, forewings thickened at the base, and that lack a pupal stage between the immature stages and the adult—called also true bug

  2. 2a:  a disease-producing microorganism and especially a germb:  a disease caused by such microorganisms; especially :  any of various respiratory conditions (as influenza or grippe) of virus origin





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