Nighthawk definition
Any of several nightjars found throughout the Americas, having grayish-brown plumage that mimics leaves on the forest floor, especially Chordeiles minor.
noun
(informal) A night owl.
noun
Any of various nightjars that feed on flying insects, esp., the common nighthawk (Chordeiles minor), which is active during the day or night.
noun
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A person whose preference or custom is to remain awake and active during the night and the early morning hours. [from 19th c.]
noun
Other Word Forms
Noun
Singular:
nighthawk
Plural:
nighthawks