Definitions
from The Century Dictionary.
- noun That property of light by which it produces chemical effects; actinism.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem. & Physics), rare The state or property of being tithonic; actinism.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry, physics The state or property of being
tithonic ;actinism .
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