noun
greater curvature of the stomach
Anatomical term referring to the longer, convex border of the stomach. Used in medical and biological contexts.
胃の大弯は小弯よりも長い。
The greater curvature of the stomach is longer than the lesser curvature.
大弯側に潰瘍が見つかった。
An ulcer was found on the greater curvature side.
Refers to the lesser curvature of the stomach, the shorter concave border, as opposed to the greater curvature.
From 大 (large) + 弯 (curve), a direct anatomical calque. The exact historical derivation is uncertain, but the term is standard in medical Japanese.