Antemeridian

Anˊte-me-rid′i-an

,

Adj.

[L.

antemeridianus

;

ante

+

meridianus

belonging to midday or noon. See

.]

Being before noon; in or pertaining to the forenoon. (Abbrev.

a. m.

)

,

Adj.

[ante, before, and meridian.]

Being before noon; pertaining to the forenoon.

antemeridian ‎(not comparable)

Do not confuse the adjective antemeridian with the Latin phrase ante meridiem.
Also do not confuse with antimeridian.