(~s)
1.
Periwinkle is a plant that grows along the ground and has blue flowers.
N-VAR
2.
Periwinkles are small sea snails that can be eaten.
= winkle
N-COUNT
(~s)
1.
Periwinkle is a plant that grows along the ground and has blue flowers.
N-VAR
2.
Periwinkles are small sea snails that can be eaten.
= winkle
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012