Search Result for "antemeridian": 
Wordnet 3.0

ADJECTIVE (1)

1. before noon; 



The Collaborative International Dictionary of English v.0.48:

Antemeridian \An`te*me*rid"i*an\, a. [L. antemeridianus; ante +
   meridianus belonging to midday or noon. See Meridian.]
   Being before noon; in or pertaining to the forenoon. (Abbrev.
   a. m.)
   [1913 Webster]


WordNet (r) 3.0 (2006):

antemeridian
    adj 1: before noon [ant: postmeridian]