enneacontahedraladj.

Etymology: < Greek ἐννεάκοντα (erroneous for ἐνενήκοντα; see Dindorf in Stephani Thes.) ninety + ἕδρα base + -al suffix¹.Previous versions of the OED give the stress as: ˌenneacontaˈhedral.

rare.

Of a crystal: Having ninety faces.

ΚΠ

1816 R. Jameson Treat. External Characters Minerals (ed. 2) 197 A Crystal is said to be..Enneacontrahedral (ennéacontraèdre), when its surface consists of ninety faces.

This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2019).

单词	enneacontahedral
释义	enneacontahedraladj. Etymology: < Greek ἐννεάκοντα (erroneous for ἐνενήκοντα; see Dindorf in Stephani Thes.) ninety + ἕδρα base + -al suffix¹.Previous versions of the OED give the stress as: ˌenneacontaˈhedral. rare. Of a crystal: Having ninety faces. ΚΠ 1816 R. Jameson Treat. External Characters Minerals (ed. 2) 197 A Crystal is said to be..Enneacontrahedral (ennéacontraèdre), when its surface consists of ninety faces. This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2019). < adj.1816
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