Pronunciation: (chub), [key]
—pl. (esp. collectively) chub, (esp. referring to two or more kinds or species) chubs.
1. a common freshwater fish, Leuciscus cephalus, of European waters, having a thick, fusiform body.
2. any of various related fishes.
3. any of several unrelated American fishes, esp. the tautog and whitefishes of the genus Coregonus, of the Great Lakes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.