wing formula
noun Ornithology.
a numerical representation of the relative lengths of the primary feathers of a bird's wing, used in identifying similar species, as flycatchers.
Origin of wing formula
First recorded in 1935–40
Words nearby wing formula
wing collar,
wing commander,
wing covert,
wing dam,
wing flat,
wing formula,
wing it,
wing loading,
wing nut,
wing shooting,
wing shot