1 osmium tetroxide | Definition of osmium tetroxide
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osmium tetroxide

noun

Definition of osmium tetroxide

: a crystalline compound OsO4 that is an oxide of osmium, has a poisonous irritating vapor, and is used as a catalyst, oxidizing agent, and biological fixative and stain

First Known Use of osmium tetroxide

1869, in the meaning defined above

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More Definitions for osmium tetroxide

osmium tetroxide

noun

Medical Definition of osmium tetroxide

: a crystalline compound OsO4 that is an oxide of osmium, has a poisonous irritating vapor, and is used chiefly as a catalyst, as an oxidizing and hydroxylating agent (as in the conversion of alkenes to glycols), and as a biological fixative and stain (as for fatty substances in cytology)

— called also osmic acid

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