a numerical representation of the relative lengths of the primary feathers of a bird's wing, used in identifying similar species, as flycatchers.
TAKE THIS QUIZ IF A DAZZLING VOCABULARY IS YOUR DESIDERATUM!
Have the Words of the Day from October 19–25, 2020, made an indelible mark on your memory? Take the quiz to find out!
Question 1 of 7
What does “clement” mean?
Origin of wing formula
First recorded in 1935–40
Words nearby wing formula
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020