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单词 pertechnic
释义

pertechnicadj.

Brit. /pəˈtɛknɪk/, U.S. /pərˈtɛknɪk/
Origin: Formed within English, by derivation. Etymons: per- prefix, technetium n., -ic suffix.
Etymology: < per- prefix + techn- (in technetium n.) + -ic suffix. Compare slightly earlier pertechnate n., pertechnetate n.
Chemistry. rare.
= pertechnetic adj.
ΚΠ
1952 Jrnl. Amer. Chem. Soc. 74 557/1 It appears..that the dark red crystals formed on evaporating aqueous solutions of Tc2O7 correspond to Tc2O7.H2O, or to anhydrous pertechnic acid, HTcO4.
This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022).
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adj.1952
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