crescent crescent /ˈkrɛsənt/

adjective

1. Resembling the new moon in shape  ( crescent , crescent-shaped , lunate , semilunar )
   resembling the new moon in shape
   

noun

1. Any shape resembling the curved shape of the moon in its first or last quarters  ( crescent )
   any shape resembling the curved shape of the moon in its first or last quarters
    The crescent moon illuminated the night sky with a soft glow.
   The crescent moon illuminated the night sky with a soft glow.