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[top-min-oh] /ˈtɒpˌmɪn oʊ/
noun, plural (especially collectively) topminnow (especially referring to two or more kinds or species) topminnows.
any of several small, surface-swimming fishes of the egg-laying family Cyprinodontidae and the live-bearing family Poeciliidae, some of which are used in mosquito control.
Origin of topminnow
An Americanism dating back to 1880-85; top1 + minnow Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for topminnow


noun (pl) -now, -nows
any of various small American freshwater cyprinodont fishes that are either viviparous (genera Heterandria, Gambusia, etc) or egg-laying (genus Fundulus)
Word Origin
from top1 + minnow; so called because they are small and swim near the surface of the water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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