Source : Webster's Revised Unabridged Dictionary (1913)

Monoecian \Mo*n[oe]"cian\, a.
   1. (Bot.) Of or pertaining to the Mon[oe]cia; mon[oe]cious.
      -- n. One of the Mon[oe]cia.

   2. (Zo["o]l.) A mon[oe]cious animal, as certain mollusks.