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actinide
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action at law
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active capital
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ad infinitum
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consent
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adad
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ad interim
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active transport
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actinism
actinism /ˈækˌtɪnɪzəm/
noun
-
The property of radiation that enables it to produce photochemical effects
(
actinism
)
the property of radiation that enables it to produce photochemical effects