vestiges

Noun

vestige (plural vestiges)

1. A mark left on the earth by a foot.

   Synonyms:

   trace, sign, track, footstep, footprint

2. (broadly) A faint mark or visible sign left by something which is lost, or has perished, or is no longer present.
   • the vestiges of ancient magnificence in Palmyra

   Synonyms:

   remains

3. A vestigial organ; a non-functional organ or body part that was once functional in an evolutionary ancestor.
   • Any person seeing such a condition could not help being frightened at the conditions found, and it seems to me that that fact should lead us to think that the appendix is a vestige or becoming so.1904, Transactions of the […] annual session, volume 40, Homeopathic Medical Society of the State of Pennsylvania, page 160
4. The remaining portion of a partially suppressed sideband.
   • [J]ust a trace, or vestige, of the other sideband is included. In the receiver detection circuitry the vestige of the lower sideband is added to the upper sideband.2003, Tarmo Anttalainen, Introduction to Telecommunications Network Engineering, page 133