1. small edible sea snails with spiral shells
2. trailing evergreen plants with blue, purple, or white flowers

Examples

• We collected periwinkles from the rocky shore at low tide.
• The chef served steamed periwinkles with garlic butter.
• Periwinkles are commonly found clinging to rocks in tidal pools.
• The garden was bordered with purple periwinkles that bloomed all summer.
• Periwinkles make excellent ground cover in shady areas.
• She planted white periwinkles under the oak tree.
• The periwinkles spread quickly across the hillside.