sievert

[ see-vert ]

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): : Sv

   The average person receives about 2 to 3 one-thousandths of a sievert per year from naturally occurring radiation in the environment.

sievert

/ ˈsiːvət /

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 ^–2gray

sievert

/ sē′vərt /

1. 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).

Word History and Origins

Origin of sievert¹

Named in honor of Swedish radiologist Rolf Maximilian Sievert (1896–1966)

Word History and Origins

Origin of sievert¹

C20: named after Rolf Sievert (1896–1966), Swedish physicist

Example Sentences

Compressed air or steam is also used for fashioning very large vessels, baths, dishes and reservoirs by the “Sievert” process.

From Project Gutenberg

Sievert Nielsen, whom I have mentioned elsewhere, was the fourth of my men.

From Project Gutenberg