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cock·le 1

1. Any of various chiefly marine bivalve mollusks of the family Cardiidae, having rounded or heart-shaped shells with radiating ribs.
2. The shell of a cockle.
3. A wrinkle; a pucker.
4. Nautical A cockleshell.
intr. & tr.v. cock·led, cock·ling, cock·les
To become or cause to become wrinkled or puckered.
cockles of (one's) heart
One's innermost feelings: The valentine warmed the cockles of my heart.

[Middle English cokel, from Old French coquille, shell, from Vulgar Latin *cochillia, from Latin conchyllium, from Greek konkhulion, diminutive of konkhē, mussel.]

cock·le 2

Any of several weedy plants, especially the corn cockle.

[Middle English cokkel, from Old English coccel, from Medieval Latin *cocculus, diminutive of Latin coccus, kermes berry, from Greek kokkos.]
References in periodicals archive ?
They have not cockled before and are using their own type of equipment which is bringing up the very small cockles which we are all trying to save for the sake of the environment and for next year's harvest.