Main Entry: mer·gan·ser

Pronunciation: \(ˌ)mər-ˈgan(t)-sər\

Function: noun

Etymology: New Latin, from Latin mergus, a waterfowl (from mergere) + anser goose — more at goose

Date: 1668

: any of various fish-eating diving ducks (especially genus Mergus) with a slender bill hooked at the end and serrated along the margins and usually a crested head

[merganser illustration]