- Any of several small, often edible marine snails, especially of the genus Littorina, having thick, cone-shaped, whorled shells.
- The shell of any of the periwinkles.
[Middle English *periwinkle, probably alteration (influenced by pervinkle, periwinkle (plant)) of Old English pīnewincle : Latin pīna, mussel (from Greek pīnē) + Old English -wincel, snail shell.]
per·i·win·kle2 (pĕr'ĭ-wĭng'kəl)

n.
- Any of several shrubby, trailing, evergreen plants of the genus Vinca, especially V. minor, having glossy, dark green, opposite leaves and flowers with a blue, funnel-shaped corolla. Also called myrtle.
- Any of several erect herbs of the genus Catharanthus, especially C. roseus, having flowers with a rose-pink or white salverform corolla and a closed throat.
- A pale purplish blue.
[Middle English pervinkle, diminutive of pervinke, from Old English pervince, from Latin (vinca) pervinca, from pervincīre, to wind about.]




