enneacontahedral

enneacontahedral
ˌenneacontaˈhedral, a. rare.
[f. Gr. ἐννεάκοντα (erron. for ἐνενήκοντα; see Dindorf in Stephani Thes.) ninety + ἔδρα base + -al1.]
Of a crystal: Having ninety faces.
R. Jameson Char. Min. 202.

Useful english dictionary. 2012.

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