Swiftlet definition

Any of various tropical and subtropical birds of the four genera Aerodramus, Hydrochous, Schoutedenapus, and Collocalia in the swift family, many of which can navigate in darkness using echolocation.
noun
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Other Word Forms

Noun

Singular:
swiftlet
Plural:
swiftlets

Origin of swiftlet

  • swift +‎ -let

    From Wiktionary