specific(redirected from specific gravity (sp. gr.))
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1. of or relating to a biological species
2. (of a disease) caused by a particular pathogenic agent
a. characteristic of a property of a particular substance, esp in relation to the same property of a standard reference substance
b. characteristic of a property of a particular substance per unit mass, length, area, volume, etc.
c. (of an extensive physical quantity) divided by mass
4. International trade denoting a tariff levied at a fixed sum per unit of weight, quantity, volume, etc., irrespective of value
5. Med any drug used to treat a particular disease
Indicating the amount of a physical quantity per unit mass, weight, volume, or area, or the ratio of the quantity for the substance under consideration to the same quantity for a standard substance, such as water.