Hooded seal Meaning, Definition & Usage

  1. noun medium-sized blackish-grey seal with large inflatable sac on the head; of Arctic and northern Atlantic waters
    bladdernose; Cystophora cristata.

WordNet

Definitions
  1. a large North Atlantic seal (Cystophora cristata). The male has a large, inflatible, hoodlike sac upon the head. Called also hoodcap.

Webster 1913