ACTINISM


Meaning of ACTINISM in English

ˈaktəˌnizəm noun

( -s )

Etymology: actin- + -ism

: the property of radiant energy especially in the visible and ultraviolet spectral regions by which chemical changes are produced (as in light-sensitive photographic emulsions) — compare actinic ray

Webster's New International English Dictionary.      Новый международный словарь английского языка Webster.