1. The action, as in photography, of the sun's rays in their chemical, as distinct from their illuminating and heating, effects.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• zctinism,
• sctinism,
• wctinism,
• qctinism,
• axtinism,
• avtinism,
• aftinism,
• adtinism,
• acrinism,
• acfinism,
• acginism,
• actinim,
• actinsim,
• actinims,
• actynism,
• activism,
• actinisme,
• Actinisim,
• Actainism,
• Attinism

• actium,
• actinozoan,
• actinomycin,
• acting,
• actinia,
• actinomeris,
• acetone,
• actinometer,
• actinidia,
• acuteness,
• actinon,
• actinide,
• acetonic,
• acetonemia,
• acidimetric,
• actinal,
• actinometry,
• action,
• actiniaria,
• actinic ray,
• actinic,
• actin,
• actiniarian,
• academism,
• actinoid,
• actinium,
• actinaria,
• acetum,
• acidimetry,
• actinolite,
• actinian,
• actinomyces.

The adjective form of the word "actinism" is "actinic".

The plural of the "actinism" can be the "actinisms".

The singular of the "actinism" can be the "actinism".