'Mergus' definitions:

Definition of 'Mergus'

(from WordNet)
noun
Mergansers [syn: Mergus, genus Mergus]

Definition of 'Mergus'

From: GCIDE
  • Mergus \Mergus\ prop. n. A genus of ducks consisting of mergansers.
  • Syn: genus Mergus. [WordNet 1.5]