Defn: A salt of osmious acid.
OSMIUM
Os"mi*um, n. Etym: [Gr. Odor.] (Chem.)
Defn: A rare metallic element of the platinum group, found native as an alloy in platinum ore, and in iridosmine. It is a hard, infusible, bluish or grayish white metal, and the heaviest substance known. Its tetroxide is used in histological experiments to stain tissues. Symbol Os. Atomic weight 191.1. Specific gravity 22.477.
OSMOGENE
Os"mo*gene, n. [Osmose + root of Gr. race.]
Defn: An apparatus, consisting of a number of cells whose sides are of parchment paper, for conducting the process of osmosis. It is used esp. in sugar refining to remove potassium salts from the molasses.
OSMOGRAPH
Os"mo*graph, n. [Osmose + -graph.] (Physics)
Defn: An instrument for recording the height of the liquid in an endosmometer or for registering osmotic pressures.
OSMOMETER
Os*mom"e*ter, n. Etym: [Gr. -meter.] (Physics)
Defn: An instrument for measuring the amount of osmotic action in different liquids.
OSMOMETRY
Os*mom"e*try, n. (Physics)