释义 |
osmium tetroxide noun Etymology: International Scientific Vocabulary osmium + tetroxide : a crystalline compound OsO4 that has a poisonous irritating pungent vapor, that is usually made by oxidizing osmium, and that is used chiefly as a catalyst, as an oxidizing and hydroxylating agent (as in the conversion of olefins to glycols), and as a stain for fatty substances in cytology |