'mosquitofish' definitions:

Definition of 'mosquitofish'

(from WordNet)
noun
Silvery topminnow with rows of black spots of tropical North America and West Indies; important in mosquito control [syn: mosquitofish, Gambusia affinis]

Definition of 'mosquitofish'

From: GCIDE
  • mosquitofish \mosquitofish\ n. A silvery topminnow (Gambusia affinis) with rows of black spots of tropical North America and West Indies; important in mosquito control.
  • Syn: Gambusia affinis. [WordNet 1.5]