Mnn.

Brit.

/ɛmˈɛn/, U.S.

/ˌɛmˈɛn/

Origin: Formed within English, by clipping or shortening. Etymon: manganese n.

Etymology: Symbolic abbreviation for manganese n.

Chemistry.

The element manganese.

ΚΠ

1813 tr. J. J. Berzelius in Ann. Philos. 2 359 Mn = manganese.

1865–72 H. Watts Dict. Chem. III. 819 Permanganate of Hydrogen, or Permanganic acid, Mn₂ H₂O₈.

1924 A. J. Allmand & H. J. Ellingham Princ. Appl. Electrochem. xiii. 213 The depolariser is MnO₂, which becomes reduced to manganese sesquioxide, OH′ ions being liberated.

1998 Plant Physiol. 118 493 Our results suggest that Mn toxicity may be mediated by oxidative stress.

This is a new entry (OED Third Edition, September 2002; most recently modified version published online March 2022).

单词	mn
释义	Mnn. Brit. /ɛmˈɛn/, U.S. /ˌɛmˈɛn/ Origin: Formed within English, by clipping or shortening. Etymon: manganese n. Etymology: Symbolic abbreviation for manganese n. Chemistry. The element manganese. ΚΠ 1813 tr. J. J. Berzelius in Ann. Philos. 2 359 Mn = manganese. 1865–72 H. Watts Dict. Chem. III. 819 Permanganate of Hydrogen, or Permanganic acid, Mn₂ H₂O₈. 1924 A. J. Allmand & H. J. Ellingham Princ. Appl. Electrochem. xiii. 213 The depolariser is MnO₂, which becomes reduced to manganese sesquioxide, OH′ ions being liberated. 1998 Plant Physiol. 118 493 Our results suggest that Mn toxicity may be mediated by oxidative stress. This is a new entry (OED Third Edition, September 2002; most recently modified version published online March 2022). < n.1813
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