noun which may take the genitive case particle 'no'
sagittal
Anatomical term referring to the sagittal plane or direction (front-to-back). Used in medical contexts.
The sagittal plane is the plane that divides the body into left and right.
From 矢 (arrow) and 状 (shape/form), likely a calque of the Latin 'sagittalis' (from 'sagitta', arrow), referring to the arrow-like direction of the sagittal suture.