noun
optic chiasm; optic chiasma
Anatomical term for the X-shaped structure where optic nerve fibers partially cross.
視交叉は、左右の視神経が交差する場所です。
The optic chiasm is where the left and right optic nerves cross.
From 視 (shi, 'vision') + 交叉 (kōsa, 'crossing'), referring to the crossing of optic nerve fibers.