ves ‧ ti ‧ gi ‧ al /veˈstɪdʒiəl, -dʒ ə l/ BrE AmE adjective
1 . technical a vestigial part of the body has never developed completely or has almost disappeared:
The legs of snakes are vestigial or absent altogether.
2 . formal remaining as a sign that something existed after most of it has gone:
his vestigial sense of pride