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单词 monatomism
释义

monatomismn.

Origin: Formed within English, by derivation. Etymons: mono- comb. form, atom n., -ism suffix.
Etymology: < mono- comb. form + atom n. + -ism suffix, after monatomic adj. Compare atomism n. N.E.D. (1907) gives the pronunciation as (mǫnæ·tŏmiz′m) /mɒˈnætəmɪz(ə)m/.
Chemistry. Obsolete. rare.
= monatomicity n.
ΘΚΠ
the world > matter > chemistry > valency > [noun] > valency of one
monatomism1854
monovalence1890
1854 Orr's Circle Sci.: Chem. 46 The proof of monatomism would be capability of electric decomposition.
This entry has been updated (OED Third Edition, September 2002; most recently modified version published online June 2018).
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n.1854
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