RADIOACTIVITY UNIT

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does radioactivity unit mean? 

• RADIOACTIVITY UNIT (noun)
  The noun RADIOACTIVITY UNIT has 1 sense:

1. a measure of radioactivity

  Familiarity information: RADIOACTIVITY UNIT used as a noun is very rare.

 Dictionary entry details 

• RADIOACTIVITY UNIT (noun)

Sense 1

Meaning:

A measure of radioactivity

Classified under:

Nouns denoting quantities and units of measure

Hypernyms ("radioactivity unit" is a kind of...):

electromagnetic unit; emu (any of various systems of units for measuring electricity and magnetism)

Hyponyms (each of the following is a kind of "radioactivity unit"):

millicurie (a unit of radioactivity equal to one thousandth of a curie)

Ci; curie (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)

gray; Gy (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)

R; roentgen (a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air)

rutherford (a unit strength of a radioactive source equal to one million disintegrations per second)

rem ((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)

millirem; mrem (a dosage of ionizing radiation equivalent to one thousandth (1/1000) of a rem)

rad (a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material)