单词	flight feather
释义	flight feather noun : one of the quills of a bird's wing or tail that support it in flight compare contour feather Example Sentences Recent Examples on the Web Unlike flight feathers, these have a very short stem. Joseph Albanese, Outdoor Life, 26 May 2020 In modern birds, barbicels are the structures that allow flight feathers to retain their shape as birds flap their wings. Rachel Fritts, Ars Technica, 15 Jan. 2020 And now engineers are turning to the species for research by adding pigeon flight feathers to an airborne robot. Rob Verger, Popular Science, 16 Jan. 2020 The paper describes what is potentially the earliest evidence of a flight feather, and the first-ever non-avian dinosaur feathers found within the Antarctic Circle. Rachel Fritts, Ars Technica, 15 Jan. 2020 The fossils include downy feathers for insulation, a fluffy protofeather that most likely belonged to a nonavian dinosaur, and one complex flight feather like those on the wings of modern birds. John Pickrell, National Geographic, 18 Nov. 2019 In museum collections from decades ago, the birds’ flight feathers are consistently yellow. BostonGlobe.com, 26 Sep. 2019 According to Persons, flight feathers found on bird wings contain a hollow center called the rachis, from which the barbs protrude. Daisy Hernandez, Popular Mechanics, 5 Aug. 2019 Experts hope that the new baby will be the first of her offspring to successfully fledge, or grow enough to acquire flight feathers and foray out of the nest. Brigit Katz, Smithsonian, 22 July 2019 See More Word History First Known Use 1735, in the meaning defined above
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