osmium tetroxide
osmium-tetroxide的词性：
n.（名词）
1. A poisonous compound, OsO4, with a pungent smell, used in solution to stain and fix biological material, especially lipids. Also called osmic acid
四氧化锇：一种有刺鼻的气味的有毒化合物，OSO4，用于溶解污迹及凝固生物物质（尤指流质） 也作 osmic acid