- capable of transmitting actinic rays.
Origin of diactinic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
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Historical Examples of diactinic
Diactinic, dī-ak-tin′ik, adj. capable of transmitting the actinic rays of the sun.
- physics able to transmit photochemically active radiation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012