half-moon

noun

1. the moon when, at either quadrature, half its disk is illuminated.
2. the phase of the moon at this time.
3. something having the shape of a half-moon or crescent.

noun

1. the ship in which Henry Hudson made his voyage to explore America in 1609.

noun

1. the moon at first or last quarter when half its face is illuminated
2. the time at which a half-moon occurs
3. 1. something shaped like a half-moon
   2. (as modifier)half-moon spectacles
4. anatomy a nontechnical name for lunula