Definitions
1.nounAny of various edible European bivalve mollusks, of the family Cardiidae, having heart-shaped shells.
2.nounThe shell of such a mollusk.
3.noun(in the plural) One’s innermost feelings (only in the expression “the cockles of one’s heart”).
4.noun(directly from French coquille) A wrinkle, pucker
5.noun(by extension) A defect in sheepskin; firm dark nodules caused by the bites of keds on live sheep
6.nounThe mineral black tourmaline or schorl.
7.nounThe fire chamber of a furnace.
8.nounA kiln for drying hops; an oast.
9.nounThe dome of a heating furnace.
10.verbTo cause to contract into wrinkles or ridges, as some kinds of cloth after a wetting; to pucker.
11.nounAny of several field weeds, such as the common corncockle (Agrostemma githago) and darnel ryegrass (Lolium temulentum).
12.nounA £10 note; a tenner.