视叶腔

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