Sievert



noun, Physics.
1.
the standard unit in the International System of Units (SI) of dose equivalent having the same biological effect as one joule of x-rays per kilogram of recipient mass (or one gray):
The average person receives about 2 to 3 one-thousandths of a sievert per year from naturally occurring radiation in the environment.
Abbreviation: Sv.
noun
1.
the derived SI unit of dose equivalent, equal to 1 joule per kilogram. 1 sievert is equivalent to 100 rems Sv
2.
(formerly) a unit of gamma radiation dose approximately equal to 8.4 × 10–2 gray

sievert sie·vert (sē’vərt)
n.

Abbr. Sv A unit of ionizing radiation absorbed dose equivalent in the International System of Units, obtained as a product of the absorbed dose measure in grays and a dimensionless factor, stipulated by the International Commission on Radiological Protection, and indicating the biological effectiveness of the radiation.
sievert
(sē’vərt)
The SI derived unit used to measure the amount of radiation necessary to produce the same effect on living tissue as one gray of high-penetration x-rays. The sievert is named after Swedish physicist Rolf Sievert (1896-1966).

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