† di-tetrahedraladj.

Etymology: < di- comb. form 1 + tetrahedral adj.

Crystallography. Obsolete.

Having the form of a tetrahedral prism with dihedral summits.

ΚΠ

1816 R. Jameson Treat. External Characters Minerals (ed. 2) 198 Di-tetrahedral, that is to say, when it [i.e. a crystal] represents a four-sided prism, bevelled on the extremities. Example, Di-tetrahedral tremolite.

This entry has not yet been fully updated (first published 1897; most recently modified version published online March 2021).

单词	di-tetrahedral
释义	† di-tetrahedraladj. Etymology: < di- comb. form 1 + tetrahedral adj. Crystallography. Obsolete. Having the form of a tetrahedral prism with dihedral summits. ΚΠ 1816 R. Jameson Treat. External Characters Minerals (ed. 2) 198 Di-tetrahedral, that is to say, when it [i.e. a crystal] represents a four-sided prism, bevelled on the extremities. Example, Di-tetrahedral tremolite. This entry has not yet been fully updated (first published 1897; most recently modified version published online March 2021). < adj.1816
随便看	marcasites marcasitical marcassin marcato marcatos marcel marcel wave marcel-waved marcel-waver marcel-waving marceline marcella marcelled marcellian marcellianism marcelling marcellus shale marcels marcelwaved marcelwaver marcelwaving marcescence marcescent marcescibility marcescible