D defs.my
Entry 1 sense Webster, 1913

Antelucan

· An·te·lu·can · IPA
01 a. Held or being before light; -- a word applied to assemblies of Christians, in ancient times of persecution, held before light in the morning.
  1. 1.
    Held or being before light; -- a word applied to assemblies of Christians, in ancient times of persecution, held before light in the morning.