cuproidn.

/ˈkjuːprɔɪd/

Etymology: < Latin cuprum copper + -oid suffix. So called by Haidinger, because the form occurs in the mineral Tetrahedrite, a sulphide of copper and antimony.

Crystallography.

1. A solid contained under twelve equal triangles, formed by erecting a pyramid on each of the triangular faces of a tetrahedron.

ΚΠ

1864 Webster's Amer. Dict. Eng. Lang. (citing Dana).

2. A trade name for a preparation of cuprous oxide used in artificial-silk manufacture.

ΚΠ

1921 T. Woodhouse tr. J. Foltzer Artif. Silk 123 Instead of metallic copper, this firm used cuprous oxide, Cu₂O, and the special preparation which they obtained is termed ‘cuproid’. The product appears as a commercial article in the form of pulverized cuprous oxide.

This entry has not yet been fully updated (first published 1893; most recently modified version published online March 2022).

单词	cuproid
释义	cuproidn. /ˈkjuːprɔɪd/ Etymology: < Latin cuprum copper + -oid suffix. So called by Haidinger, because the form occurs in the mineral Tetrahedrite, a sulphide of copper and antimony. Crystallography. 1. A solid contained under twelve equal triangles, formed by erecting a pyramid on each of the triangular faces of a tetrahedron. ΚΠ 1864 Webster's Amer. Dict. Eng. Lang. (citing Dana). 2. A trade name for a preparation of cuprous oxide used in artificial-silk manufacture. ΚΠ 1921 T. Woodhouse tr. J. Foltzer Artif. Silk 123 Instead of metallic copper, this firm used cuprous oxide, Cu₂O, and the special preparation which they obtained is termed ‘cuproid’. The product appears as a commercial article in the form of pulverized cuprous oxide. This entry has not yet been fully updated (first published 1893; most recently modified version published online March 2022). < n.1864
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