[ gey-per ]
/ ˈgeɪ pər /


a person or thing that gapes.
Also called horse clam. a large clam, Tresus capax, common on gravelly and coarse-sand beaches.

Origin of gaper

First recorded in 1630–40; gape + -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for gaper

British Dictionary definitions for gaper


/ (ˈɡeɪpə) /


a person or thing that gapes
any of various large marine bivalve molluscs of the genera Mya and Lutraria that burrow in muddy sand. M. arenaria is the American soft-shelled clam and the two species of Lutraria are the otter shells. The valves have a permanent gap at the hind end
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for gaper



1630s, agent noun from gape (v.). Gaper delay in traffic control parlance attested by 1995.

Online Etymology Dictionary, © 2010 Douglas Harper