Definitions for "Vestigial"
Smaller and of more simple structure than in an evolutionary ancestor (Halliday 1987).
Small or degenerate.
Relating to an organ or structure that no longer functions, even though its structure still exists.
Of or pertaining to a vestige or remnant; like a vestige.
Nonfunctioning, a remnant of a body part that existed in a former species of an animal. Whales have tiny, vestigial hind legs buried deep in their bodies.
In the nature of a vestige or remnant.
Keywords:  wing, gene, specific
a wing specific gene