Adaptive response

A cellular response induced by a low priming dose which, typically, serves to transiently increase the resistance of the cell to a subsequent radiation exposure

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from ICRP Publication 131, 2015

Increased resistance of cells or tissues to radiation following a priming dose, or adjustment to radiation exposure that enables an organism to retain viability, and maintain fertility and normal functional stability of all tissues, organs, and systems under the conditions of chronic exposure. The principal criterion of radiation adaptation is increased radioresistance (tolerance) of the organism and the cells of its critical organs.

from ICRP Publication 118, 2012

Increased resistance of cells or tissues to radiation following a priming dose, or adjustment to radiation exposure which enables an organism to retain viability, and maintain fertility and normal functional stability of all tissues, organs, and systems under the conditions of chronic exposure. The principal criterion of radiation adaptation is an increased radioresistance (tolerance) of the organism and the cells of its critical organs.

from ICRP Publication 103, 2007

A post-irradiation cellular response which, typically, serves to increase the resistance of the cell to a subsequent radiation exposure.