postmeridian Meaning, Definition & Usage

  1. adjective after noon

WordNet

Post`me*rid"i*an adjective
Etymology
L. postmeridianus; post after + meridianus. See Meridian.
Definitions
  1. Coming after the sun has passed the meridian; being in, or belonging to, the afternoon. (Abbrev. P. M.)
  2. Fig., belonging to the after portion of life; late. R.

Webster 1913