(n) :
(chemistry) An oxide of the metal osmium, OsO₄; it is very poisonous, has a pungent smell and can cause blindness; it is a powerful oxidizing agent, and is used to stain biological materials.
(n) :
(chemistry) An oxide of the metal osmium, OsO₄; it is very poisonous, has a pungent smell and can cause blindness; it is a powerful oxidizing agent, and is used to stain biological materials.