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actin-

1.
variant of actino- before a vowel:
actinism.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for actin-

actino-

combining form
1.
indicating a radial structure: actinomorphic
2.
indicating radioactivity or radiation: actinometer
Word Origin
from Greek aktino-, from aktis beam, ray
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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7
9
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