[Radiation hormesis, radiation stimulation or hyperfunctional effect of ionizing radiation?].

The term "radiation hormesis" is thought of unsatisfactory one because it is difficult to define such concepts as "benefit", "harm" or "contributory" with respect to irradiation of biological species. The term does not take into account a fact that large doses stimulate the same biological processes and functions as low ones. The definition of the effect of radiation stimulation as physiological hyperfunction response of biological object to ionising radiation is proposed.