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Medical Dictionary

screwworm

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noun screw·worm \ˈskrü-ˌwərm\

Medical Definition of screwworm

  1. 1:  either of two dipteran flies of the genus Cochliomyia:a:  one (C. hominivorax) of the warmer parts of America whose larva develops in sores or wounds or in the nostrils of mammals including humans with serious or sometimes fatal results; especially :  its larvab:  secondary screwworm

  2. 2:  a dipteran fly of the genus Chrysomyia (C. bezziana) that causes myiasis in the Old World




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