vestigial
A vestigial body part is a small part that used to be useful in the past, but is not useful now.
(Of a body part or structure) present as a small, reduced remnant that has lost most or all of its original function through evolution.
Vestigial means “left over from the past and not really needed now.”
Remaining as a small or weakened trace of something that used to exist or be important, especially when it no longer has a clear purpose.
- Base: vestigial
vestigial feature
1Leftover feature no longer needed
A feature that is still there, but is left over from the past and not needed now.
- The settings screen still contains a vestigial feature from the old app.
- Engineers removed vestigial features to simplify the interface.
- This is a vestigial feature from an older version.
vestigial limb
1Reduced limb no longer functional
A small, reduced arm or leg that is left over from the past and does not work well.
- Boas have vestigial limbs visible as small spurs.
- The species evolved vestigial limbs after adapting to life in the water.
vestigial organ
1Reduced organ with lost function
A body organ that is left over from evolution and is not very useful now.
- Some textbooks describe the human appendix as a vestigial organ.
- Researchers debate whether certain organs are truly vestigial organs or have minor functions.
- The appendix is often called a vestigial organ.
vestigial remains
1Small traces left behind
Small leftover parts or signs of something from the past.
- The town still has vestigial remains of its industrial past.
- Only vestigial remains of the old system survived the reform.
- There are vestigial remains of the old rule.
vestigial structure
1Reduced body structure from evolution
A small body structure that remains from the past but is not very useful now.
- The snake’s pelvic bones are a vestigial structure.
- In some insects, wings are present only as vestigial structures.
- The animal has a vestigial structure from its ancestors.
vestigial tail
1Small reduced tail remnant
A very small tail that is left over and not useful.
- The embryo briefly shows a vestigial tail during early development.
- Some animals have a vestigial tail that no longer helps with balance or movement.
- The baby was born with a vestigial tail.