—n. 1. any bivalve mollusk of the genus Cardium, having somewhat heart-shaped, radially ribbed valves, esp. C. edule, the common edible species of Europe.
2. any of various allied or similar mollusks.
3. cockleshell (defs. 1, 2).
4. a wrinkle; pucker: a cockle in fabric. 5. a small, crisp candy of sugar and flour, bearing a motto.
6. cockles of one's heart, the depths of one's emotions or feelings: The happy family scene warmed the cockles of his heart.
—v.i. 1. to contract into wrinkles; pucker: This paper cockles easily. 2. to rise in short, irregular waves; ripple: The waves cockled along the shore.
—v.t. to cause to wrinkle, pucker, or ripple: The wind cockled the water.
Pronunciation: (kok'ul),[key] —n. a weed, as the darnel Lolium temulentum, or rye grass, L. perenne.