osmium tetroxide(redirected from Osmeth)
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os·mic ac·id(oz'mik as'id),
OsO4; a volatile caustic and strong oxidizing agent; colorless crystals, poorly soluble in water, but soluble in organic solvents; the aqueous solution is a fat and myelin stain and a general fixative for electron microscopy.
Synonym(s): osmium tetroxide
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. Also called osmic acid.
osmic acida substance used in the fixing of cytological preparations that is characterized by the small amount of distortion it causes.
a chemical element, atomic number 76, atomic weight 190.2, symbol Os. See Table 6.
a pathology stain and fixative; called also osmic acid.