Origin: Latin suffix -tion
Irradiation has 7 different meanings across 1 category:
the condition of being exposed to radiation
"After years of irradiation from cosmic rays at high altitudes, the pilot's skin began to show signs of sunburn-like damage even indoors."
a column of light (as from a beacon)
"The lighthouse keeper adjusted the mechanism so that its beam of irradiation would sweep across the treacherous rocks exactly where ships needed it most."
(physiology) the spread of sensory neural impulses in the cortex
"The patient's visual hallucinations resulted from cortical irradiation, where a single point of light seemed to expand across her entire field of vision."
the apparent enlargement of a bright object when viewed against a dark background
"The moon looked surprisingly large and imposing as it rose above the pitch-black horizon, an effect caused by irradiation."
(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
"The researcher noted that the dog salivated at the sound of a bell, even though it had only been previously trained to respond to a tone slightly higher in pitch."
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
"The doctor explained that the patient would undergo irradiation next week to target the tumor without harming surrounding healthy tissue."
An act of irradiating, or state of being irradiated.
"The fresh watermelons were treated by irradiation to eliminate any harmful bacteria before they reached the store shelves."