Lexic.us

Definition of Roentgen

1. Noun. A unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air.

2. Noun. German physicist who discovered x-rays and developed roentgenography (1845-1923).

Definition of Roentgen

1. a unit of radiation dosage [n -S]

Medical Definition of Roentgen

1. The special unit of exposure, based on a quantity of ionisation (charge) produced by the absorption of X or gamma radiation energy in a specified mass of air under standard conditions. 1R = 2.58 x 10-4 C kg-1 or air. For radiation protection purposes, an exposure to 1 roentgen of x or gamma rays (air kerma of ~10-2 J kg-1) is generally assumed to produce an absorbed dose of 1 rad in water or soft tissue. Abbreviation: R (06 Aug 1998)

Lexicographical Neighbors of Roentgen

rod outer segment rod outer segments rod vision roe roe Roebling roebuck roebuck roebucks roed

roed roedeer roemer roemers Roentgen (current term) Roentgen (current term) roentgen-equivalent roentgen-equivalent physical roentgenkymogram roentgenkymograph

roentgenkymography roentgenogram roentgenogram roentgenograms roentgenograph roentgenographic roentgenography roentgenography roentgenologic roentgenologies

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