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Specific Gravity - 6 dictionary results

specific gravity

–noun Physics.
the ratio of the density of any substance to the density of some other substance taken as standard, water being the standard for liquids and solids, and hydrogen or air being the standard for gases.
Also called relative density.


Origin:
1660–70


spe⋅cif⋅ic-grav⋅i⋅ty, adjective
specific gravity  
n.  The ratio of the mass of a solid or liquid to the mass of an equal volume of distilled water at 4°C (39°F) or of a gas to an equal volume of air or hydrogen under prescribed conditions of temperature and pressure. Also called relative density.

specific gravity

The mass of a substance, given as a multiple of the mass of the same volume of a standard substance (usually water). The specific gravity of aluminum is 2.70; hence, a cubic foot of aluminum weighs 2.70 times as much as a cubic foot of water.


Main Entry: specific gravity
Function: noun
: the ratio of the density of a substance to the density of some substance (as pure water) taken as a standard when bothdensities are obtained by weighing in air

specific gravity n.
Abbr. sg, sp gr
The ratio of the mass of a solid or liquid to the mass of an equal volume of distilled water at 4°C (39°F) or of a gas to an equal volume of air or hydrogen under prescribed conditions of temperature and pressure.

specific gravity   (spĭ-sĭf'ĭk)  Pronunciation Key 
The relative density of a solid or liquid, usually when measured at a temperature of 20°C, compared with the maximum density of water (at 4°C). For example, the specific gravity of carbon steel is 7.8, that of lead is 11.34, and that of pure gold is 19.32.
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