Os

Os
Osmium is a member of the platinum group of metals and is commonly found in conjunction with these elements.
Oscillation
Oscillation is the variation, usually with time, of the magnitude of a quantity with respect to a specified reference.
Oscillator
A regenerative circuit which has signal-generating characteristics.
Oscilloscope
An instrument using a cathode-ray tube for visual display of electric signals.
OSHA
Abbreviation of Occupational Safety & Health Administration.
Osmiridium
Osmiridium (iridosmine) is a naturally occurring alloy of osmium and iridium. Used to make long-wearing tips for gold fountain-pen nibs.
Osmium
A member of the platinum group of metals and is commonly found in conjunction with these elements.
Osmole
The osmotic pressure of a one molar solution of a substance that does not dissociate, such as sugar in water.
Osmometry
Determination of the average molecular weight of a dissolved substance from measurements of osmotic pressure.
Osmosis
Passage of solvent molecules from a dilute solution through a semipermeable membrane to a more concentrated solution.
Osmotic Pressure
Pressure which must be applied to a solution to prevent water from flowing in via a semipermeable membrane.
Ossicles
A linkage of three tiny bones providing the mechanical coupling between the eardrum and the oval window of the cochlea consisting of the hammer, anvil, and stirrup.