actinism

n [U] property of short-wave radiation that produces chemical changes, as in photography 光化性（光波的辐射性能, 可产生化学变化, 如摄影术中者）.

acridity, acrimonious, acrimoniously, acrimony, acrobat, acrobatic, acrobatically, acrobatics, acronym, acropolis, across, across from, acrostic, acrylic, act, act as, act for, act on, act out, acting, action, action group, action painting, action replay, action stations, actionable, activate, activation, active, active service (US also active duty), actively, activeness, activist, activity, actor, actress, actual, actuality, actually, actuarial,