DictionarygrampusLarge dolphin
noun

grampus

GRAM-pus/ˈɡræmpəs/

A large dolphin.

The black-and-white grampus swims with its conical teeth slightly exposed.

A single adult orca swimming in a sparse cutaway of seawater, its unmistakable black-and-white body fully visible and its slightly open mouth revealing conical teeth.
Etymology

The ancestral compound meant ‘great fish’ or ‘fat fish,’ describing the creature by its bulk and fishlike appearance. English applied the name to killer whales and other large dolphin-like marine mammals.

More examples

  • We watch two grampuses swim away from the shore.
  • The guide identifies the large dolphin as a grampus.
  • The grampus disappears beneath the waves.

Forms

grampus · grampuses

Similar words

dolphin
A broader term that includes smaller species as well.
orca
Names one particular large dolphin, also called a killer whale.