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wing formula

American  

noun

Ornithology.
  1. a numerical representation of the relative lengths of the primary feathers of a bird's wing, used in identifying similar species, as flycatchers.


Etymology

Origin of wing formula

First recorded in 1935–40

Example Sentences

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Page last updated at Cars may look more like this 1998 McLaren, with a lower nose and smaller rear wing Formula 1 teams have agreed to abandon plans to make radical changes to cars for the 2013 season.

From BBC