Function: noun
Date: 1936
: the treatment of medical or psychiatric conditions (as seasonal affective disorder) by the controlled application of light ― called also light treatment phototherapy
Function: noun
Date: 1936
: the treatment of medical or psychiatric conditions (as seasonal affective disorder) by the controlled application of light ― called also light treatment phototherapy
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012