D defs.my
Entry 2 senses Webster, 1913

Postmeridian

· Post·me·rid·i·an · IPA
01 a. Coming after the sun has passed the meridian; being in, or belonging to, the afternoon. (Abbrev. P. M.)
  1. 1.
    Coming after the sun has passed the meridian; being in, or belonging to, the afternoon. (Abbrev. P. M.)
  2. 2.
    Fig., belonging to the after portion of life; late.[R.]