any of a family (Trochilidae) of tiny brightly colored nonpasserine American birds related to the swifts that have a very slender bill and an extensible tongue for sipping nectar and that usually hover rather than perch when feeding
hummingbirds
noun(hum-ming-bird)
a hummingbird (Archilochus colubris) of eastern North America having a bright metallic green back, whitish underparts, and in the adult male a red throat