Meaning : Pertaining to the surface of a body part.
Example :
A drug for topical (or local) application.
A topical anesthesia.
Meaning : Of or relating to or arranged by topics.
Example :
A detailed record on both a chronological and a topical basis.
Meaning : Of interest at the present time.
Example :
A topical reference.
A topical and timely study of civil liberty.