English Dictionary

plagiostomy

noun

(biology) An adaptation in which the mouth is diminished, firmly closed, and located on the ventral side protected deeply within a carapace.

Plagiostomy is a surgical procedure used to create an opening in the side of the body.

意味（1）

(biology) An adaptation in which the mouth is diminished, firmly closed, and located on the ventral side protected deeply within a carapace.

From its original subcerebral position (orthognathism) it shifts into a precerebral position (proguathism). That in connection with this rotation plagiostomy changes into teleostomy we will pass over in silence, although this phenomenon would give amble scope for interesting observations.