| 释义 |
diactinic, a. Optics.|daɪækˈtɪnɪk|
[f. di-3 = dia-1 +Gr. ἀκτίν- a ray + -ic.]
Having the property of transmitting the actinic rays of light.
1867W. A. Miller Elemen. Chem. i. (ed. 4) 230 Rock-salt, fluor-spar, water..are almost as diactinic..as quartz. 188019th Cent. Mar. 529 Substances which are chemically transparent are said to be diactinic. 1880Athenæum 11 Dec. 781/3 Experiments which prove the diactinic character of substances constructed on an open chain of carbon compounds.
So diˈactinism, ‘the condition of transparency for chemical or actinic rays’ (Syd. Soc. Lex. 1883). |