Synonyms for Afterimage:

n.

•afterimage (noun)
aftersensation.
•cognition (noun)
aftersensation.
•residue (noun)
remnant, remainder, Filings, leftovers, sawdust, residue, chaff, detritus, dross, vestige, precipitate, scum, debris, grounds, sediment, artifact, afterglow, slag, dregs.

Other synonyms:

•Other relevant words:
aftersensation.