from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A volatile poisonous pale yellow solid, OsO4, with a pungent smell, used as an oxidizing agent and in solution to stain and fix biological material, especially lipids.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry An
oxideof the metalosmium, OsO4; it is very poisonous, has a pungent smelland can cause blindness; it is a powerful oxidizing agent, and is used to stain biological materials.
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