Definition, Meaning & Synonyms

vestigial

adjective
/vɛˈstɪdʒ.i.əl/
Definition
Referring to something that has lost its original function or purpose through evolution.
Examples
  • Humans have vestigial structures, like the appendix, that no longer serve a significant role in digestion.
  • The wings of flightless birds are considered vestigial, as they are not used for flying.
  • Some vestigial organs in animals demonstrate the evolutionary history of the species.
Meaning
Vestigial describes parts of an organism that are remnants of a structure that once served a important purpose but are now reduced or useless.
Synonyms
  • rudimentary
  • degenerate
  • reduced
  • remnant