視し交こう叉さ

noun

optic chiasm; optic chiasma

Anatomical term for the X-shaped structure where optic nerve fibers partially cross.

• 視し交こう叉さは、左さ右ゆうの視し神しん経けいが交こう差さする場ば所しょです。

  The optic chiasm is where the left and right optic nerves cross.