Cockle
Part of speech: verb
Definition: To wrinkle, pucker
Part of speech: noun
Definition: Any of various edible European bivalve mollusks, of the family Cardiidae, having heart-shaped shells. The shell of such cockle. (plural) One's innermost feelings (only in the expression “the cockles of one's heart”). [directly from French coquille] A wrinkle, pucker hence A defect in sheepskin; firm dark nodules caused by the bites of keds on live sheep Any of several field weeds, such as the corn cockle
Undulate
Part of speech: adjective
Definition: Wavy in appearance or form.Changing the pitch and volume of one's voice.Winding up and down gradually relative to the blade.
Part of speech: verb
Definition: To cause to move in a wavelike motion.To cause to resemble a waveTo move in wavelike motions.To appear wavelike.