New moon Meaning, Definition & Usage

  1. noun the time at which the Moon appears as a narrow waxing crescent
    new phase of the moon.

WordNet


Definitions
  1. . (a) The moon in its first quarter, or when it first appears after being invisible . (b) The day when the new moon is first seen; the first day of the lunar month, which was a holy day among the Jews. 2 Kings iv. 23.

Webster 1913