Word Study
post meridiem
WORDNET DICTIONARY
Adjective post meridiem has 1 sense
- post meridiem(s = adj.all) p.m. - after noon; Array
Adverbial post meridiem has 1 sense
- post meridiem(r = adv.all) p.m. - between noon and midnight; "let's meet at 8 P.M."
For further exploring for "post meridiem" in Webster Dictionary Online