单词 octahedron 释义 octahedron, octo-|kthidrn, -hdrn|Pl. -ons or -a. Also 6–8 octa(h)edrum, 6–9 octaedron, 7–9 octoedron.[a. Gr. ὀά an octahedron, neuter of ὀά adj., eight-sided, f. ὀ- octa- + ἕ seat. In L. octadron, med.L. octa(h)edrum (Du Can...