† microcrithn.

Origin: Formed within English, by compounding. Etymons: micro- comb. form, crith n.

Etymology: < micro- comb. form + crith n. (see quot. 1873). N.E.D. (1906) gives the pronunciation as (məi·krokriþ) /ˈmaɪkrəʊkrɪθ/.

Chemistry. Obsolete. rare.

A unit of molecular weight, equal to the mass of a hydrogen atom.

ΚΠ

1873 J. P. Cooke New Chem. (1874) iii. 73 I propose to call the unit of molecular weight we have adopted a microcrith, even at the risk of coining a new word.

1882 Mind 7 468 The weight of the hydrogen-atom is taken as the unit of molecular weight, or microcrith, and..according to calculations based on the figures of Sir William Thomson, this atom weighs approximately..109,312 octillionths of a gramme.

This entry has been updated (OED Third Edition, December 2001; most recently modified version published online June 2018).

单词	microcrith
释义	† microcrithn. Origin: Formed within English, by compounding. Etymons: micro- comb. form, crith n. Etymology: < micro- comb. form + crith n. (see quot. 1873). N.E.D. (1906) gives the pronunciation as (məi·krokriþ) /ˈmaɪkrəʊkrɪθ/. Chemistry. Obsolete. rare. A unit of molecular weight, equal to the mass of a hydrogen atom. ΚΠ 1873 J. P. Cooke New Chem. (1874) iii. 73 I propose to call the unit of molecular weight we have adopted a microcrith, even at the risk of coining a new word. 1882 Mind 7 468 The weight of the hydrogen-atom is taken as the unit of molecular weight, or microcrith, and..according to calculations based on the figures of Sir William Thomson, this atom weighs approximately..109,312 octillionths of a gramme. This entry has been updated (OED Third Edition, December 2001; most recently modified version published online June 2018). < n.1873
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