Source : Webster's Revised Unabridged Dictionary (1913)

Optocoele \Op"to*c[oe]le\, Optocoelia \Op`to*c[oe]"li*a\, n.
   [NL. optocoelia, fr. Gr. ? optic + ? a hollow.] (Anat.)
   The cavity of one of the optic lobes of the brain in many
   animals. --B. G. Wilder.