radioactivity unit
English Thesaurus
1. a measure of radioactivity (noun.quantity)
hypernym | : | electromagnetic unit, emu, |
definition | : | any of various systems of units for measuring electricity and magnetism (noun.quantity) |
hyponym | : | millicurie, |
definition | : | a unit of radioactivity equal to one thousandth of a curie (noun.quantity) |
hyponym | : | ci, curie, |
definition | : | a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second (noun.quantity) |
hyponym | : | gray, gy, |
definition | : | the SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad (noun.quantity) |
hyponym | : | r, roentgen, |
definition | : | a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air (noun.quantity) |
hyponym | : | rutherford, |
definition | : | a unit strength of a radioactive source equal to one million disintegrations per second (noun.quantity) |
hyponym | : | rem, |
definition | : | (Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays (noun.quantity) |
hyponym | : | rad, |
definition | : | a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material (noun.quantity) |
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