specific gravity
noun Date: 1660 the ratio of the density of a substance to the density of some substance (as pure water) taken as a standard when both densities are obtained by weighing in air

New Collegiate Dictionary. 2001.

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  • Specific gravity — is defined as the ratio of the density of a given solid or liquid substance to the density of water at a specific temperature and pressure, typically at 4°C (39°F) and convert|1|atm|inHg|2|abbr=on|lk=on , making it a dimensionless quantity (see… …   Wikipedia

  • specific gravity — specific gravity, adj. 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… …   Universalium

  • Specific gravity — specific spe*cif ic (sp[ e]*s[i^]f [i^]k), a. [F. sp[ e]cifique, or NL. spesificus; L. species a particular sort or kind + facere to make. Cf. {specify}.] 1. Of or pertaining to a species; characterizing or constituting a species; possessing the… …   The Collaborative International Dictionary of English

  • Specific gravity — Gravity Grav i*ty, n.; pl. {Gravities}. [L. gravitas, fr. gravis heavy; cf. F. gravit[ e]. See {Grave}, a., {Grief}.] 1. The state of having weight; beaviness; as, the gravity of lead. [1913 Webster] 2. Sobriety of character or demeanor. Men of… …   The Collaborative International Dictionary of English

  • specific gravity — n the ratio of the density of a substance to the density of some substance (as pure water) taken as a standard when both densities are obtained by weighing in air * * * the ratio, more correctly known as relative density, of the density of a… …   Medical dictionary

  • specific gravity — n. the ratio of the weight or mass of a given volume of a substance to that of an equal volume of another substance (water for liquids and solids, air or hydrogen for gases) used as a standard …   English World dictionary

  • specific gravity — noun the density of a substance relative to the density of water • Hypernyms: ↑relative density * * * noun [noncount] technical : a measurement that indicates how dense a substance is by comparing it to the density of water determining the… …   Useful english dictionary

  • specific gravity — the ratio, more correctly known as relative density, of the density of a substance at 20°C to the density of water at its temperature of maximum density (4°C). Measurement of the specific gravity of urine is one of the tests of renal function …   The new mediacal dictionary

  • specific gravity —    The weight of a particular volume of water that a given body of rock or soil will hold against the pull of gravity to the volume of the body itself. It is usually expressed as a percentage [6] …   Lexicon of Cave and Karst Terminology

  • specific gravity — Synonyms and related words: G, G suit, apogeotropism, closeness, compactness, congestedness, congestion, consistence, consistency, crowdedness, denseness, density, firmness, geotropism, gluiness, gravitation, graviton, gravity, hardness,… …   Moby Thesaurus

  • specific gravity — spe.cific gravity n [U and C] technical the weight of a substance divided by the weight of the amount of water that would fill the same space …   Dictionary of contemporary English

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