actinism

ac·ti·nism  (kt-nzm)

n.

The intrinsic property in radiation that produces photochemical activity.

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actinism

the ability of light and heat and other forms of radiant energy to cause chemical changes, as hormonal changes in birds causing them to migrate or brood. — actinic, adj.

See also: Heat

Thesaurus

Noun

1.

actinism - the property of radiation that enables it to produce photochemical effects property - a basic or essential attribute shared by all members of a class; "a study of the physical properties of atomic particles"