单词 | tithonism |
释义 | † tithonismn. Photography. Obsolete. rare. The property by which solar radiation causes photochemical change, as in traditional photography; = tithonicity n. Cf. actinism n. 1. ΘΚΠ the world > matter > physics > electromagnetic radiation > solar radiation > [noun] > property causing chemical change tithonicity1842 actinism1845 tithonism1855 1855 J. Scoffern in Orr's Circle Sci.: Elem. Chem. 93 That peculiar associate of light which has been termed by different chemists actinism, tithonism, and energia. This entry has been updated (OED Third Edition, January 2018; most recently modified version published online June 2018). < n.1855 |
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