vestigial

Plural: vestigials

Adjective Satellite

not fully developed in mature animals

Adj

Of or pertaining to a vestige or remnant; like a trace from the past.
Not fully developed in mature animals.
Of a vestigial structure; that has lost all or most of its original function in the course of evolution.

Noun

A small, degenerate, or imperfectly developed part or organ which has been more fully developed in some past generation.

Origin / Etymology

From vestige + -ial.

Synonyms

rudimentary

Scrabble Score: 13

vestigial is a valid Scrabble (US) TWL word
vestigial is a valid Scrabble Word in Merriam-Webster MW Dictionary
vestigial is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 16

vestigial is a valid Words With Friends word