periwinkle

periwinkle is defined in Webster's Unabridged Dictionary (1913) with 2 senses. The full text of each entry is reproduced verbatim below.

Definitions

1.Any small marine gastropod shell of the genus Littorina. The common European species (Littorina littorea), in Europe extensively used as food, has recently become naturalized abundantly on the American coast. See Littorina. Note: In America the name is often applied to several large univalves, as Fulgur carica, and F. canaliculata.
2.A trailing herb of the genus Vinca. Note: The common perwinkle (Vinca minor) has opposite evergreen leaves and solitary blue or white flowers in their axils. In America it is often miscalled myrtle. See under Myrtle.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

Definitions: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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