Source : Webster's Revised Unabridged Dictionary (1913)

Astraean \As*tr[ae]"an\, a. [Gr. ? starry.] (Zo["o]l.)
   Pertaining to the genus {Astr[ae]a} or the family
   {Astr[ae]id[ae]}. -- n. A coral of the family
   {Astr[ae]id[ae]}; a star coral.