the dose of ionizing radiation that produces the same effect in man as one roentgen of x- or gamma-radiation REM, rem
roentgenism roent·ge·nism (rěnt’gə-nĭz’əm, -jə-, rŭnt’-) n. The use of x-rays in the diagnosis and treatment of disease. A damaging effect of x-rays on tissues.
noun, Chemistry, Physics. 1. a superheavy, synthetic radioactive element with a very short half-life. Symbol: Rg; atomic number: 111.
verb (used with object), roentgenized, roentgenizing. (formerly) 1. to subject to the action of x-rays. verb 1. (transitive) to bombard with X-rays
1. a combining form of roentgen: roentgenometer. combining form 1. indicating X-rays: roentgenogram