\Gap"er\, n.
1. One who gapes.

2. (Zo["o]l.)
   (a) A European fish. See 4th {Comber}.
   (b) A large edible clam ({Schizoth[ae]rus Nuttalli}), of
       the Pacific coast; -- called also {gaper clam}.
   (c) An East Indian bird of the genus {Cymbirhynchus},
       related to the broadbills.