noun
stereoisomerism
Technical term in chemistry referring to isomerism where atoms have the same connectivity but different spatial arrangements.
立体異性は有機化学で重要な概念です。
Stereoisomerism is an important concept in organic chemistry.
Compound of 立体 (りったい, 'three-dimensional') and 異性 (いせい, 'isomerism'), a calque from English 'stereoisomerism'.