Tropic bird Meaning, Definition & Usage

  1. noun mostly white web-footed tropical seabird often found far from land
    boatswain bird; tropicbird.

WordNet

Definitions
  1. (Zoöl.), any one of three species of oceanic belonging to the genus Phaëthon, found chiefly in tropical seas. They are mostly white, and have two central tail feathers very long and slender. The yellow-billed tropic bird. Phaëthon flavirostris (called also boatswain), is found on the Atlantic coast of America, and is common at the Bermudas, where it breeds.

Webster 1913