n.
1 a any edible mollusc of the genus Cardium, having a chubby ribbed bivalve shell. b its shell.
2 (in full cockle-shell) a small shallow boat.
Phrases and idioms:
warm the cockles of one's heart make one contented; be satisfying.
Etymology: ME f. OF coquille shell ult. f. Gk kogkhulion f. kogkhe CONCH
2.
n.
1 any of various plants, esp. the pink-flowered corn-cockle, Agrostemma githago, growing among corn, esp. wheat.
2 a disease of wheat that turns the grains black.
Etymology: OE coccul, perh. ult. f. LL COCCUS
3.
v. & n.
—v.
1 intr. pucker, wrinkle.
2 tr. cause to cockle.
—n. a pucker or wrinkle in paper, glass, etc.
Etymology: F coquiller blister (bread in cooking) f. coquille: see COCKLE(1)
Useful english dictionary. 2012.