A bivalve mollusc which bores into soft rock or other firm surfaces. The valves of the shell have a conspicuous gap between them and rough frontal ridges to aid in boring.
- ‘The piddock has a thin, brittle shell that is similar in shape and sculpturing on both sides.’
- ‘The White piddock has mostly been described as smaller than the American one, but at the Belgian coast, opposite results have been found.’
- ‘In SE Asia piddocks may be boiled and eaten with sauce and rice, or sautéed with shallots, or made into a curry.’
- ‘Some boring shellfish bore with chemistry, but the American piddock is a mechanical borer repetitively grinding its shell with a rotating movement backward and forward to create a burrow for itself in softer substrates in the shallows of the intertidal zones.’
- ‘This member of the Piddock family lives intertidally in mud and peat banks.’
Mid 19th century: of unknown origin.