Definition of pomeridian in English:

pomeridian

adjective

literary, rare
  • Of or relating to the hours after midday; belonging to the afternoon. Frequently (and in earliest use) poetic as postpositive. Compare postmeridian . Occasionally also as noun: = postmeridian .

Origin

Late 16th century; earliest use found in John Rolland (fl. 1528–1580), poet. From classical Latin pōmerīdiānus, variant of postmerīdiānus.

Pronunciation

pomeridian

/ˌpəʊmɪˈrɪdɪən/