Turnstone definition

tûrnstōn
Either of two shorebirds of the genus Arenaria, especially the ruddy turnstone.
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Any of a genus (Arenaria, family Scolopacidae) of small, migratory shorebirds, esp., the ruddy turnstone (A. interpres)
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Either of two species of coastal wading bird, Arenaria interpres and Arenaria melanocephala, that breed in the Arctic and readily turn stones or seaweed looking for hidden invertebrates.
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Other Word Forms

Noun

Singular:
turnstone
Plural:
turnstones

Origin of turnstone

  • So called because the birds turn stones over to expose small invertebrates on which they feed

    From American Heritage Dictionary of the English Language, 5th Edition

  • turn +"Ž stone

    From Wiktionary