Webster's Revised Unabridged Dictionary · 1913

Basommatophora

Basommatophora (bȧ*som`mȧ*tof"o*rȧ) , noun, plural

[New Latin, from Greek ba`sis base + 'o`mma eye + fe`rein to bear.]

(Zoology) A group of Pulmonifera having the eyes at the base of the tentacles, including the common pond snails.