Definition of topminnow in English:

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topminnow

Pronunciation: /ˈtäpˌminō/

noun

A small surface-swimming fish related to the killifishes, found in fresh, brackish, and salt water throughout North America.
  • Genus Fundulus, family Fundulidae: many species, including the banded topminnow (F. cingulatus) and the eastern starhead topminnow (F. escambiae)
Example sentences
  • The males are less responsive to non-threatening fish like topminnows (family Fundulidae).
  • One form of aggressive behavior is dominance hierarchies, which are found in many groups (e.g. catfishes, minnows, cods, ricefishes, topminnows, cichlids, wrasses, blennies, and boxfishes).
  • The Gila topminnow historically occurred throughout the Gila River drainage in Arizona, and even into New Mexico and Mexico.
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