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any freshwater sculpin of the genus Cottus.
[1400–50; the fish is so called from its thumblike head]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.miller's-thumb - small freshwater sculpin of Europe and North Americamiller's-thumb - small freshwater sculpin of Europe and North America
Cottus, genus Cottus - type genus of the Cottidae: sculpins
sculpin - any of numerous spiny large-headed usually scaleless scorpaenoid fishes with broad mouths
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