octahedron
noun/ˌɒktəˈhiːdrən/
/ˌɑːktəˈhiːdrən/
(geometry)- a solid figure with eight flat sides, especially one whose sides are eight equal trianglesWord Originlate 16th cent.: from Greek oktaedron, neuter (used as a noun) of oktaedros ‘eight-faced’.
Want to learn more?
Find out which words work together and produce more natural sounding English with the Oxford Collocations Dictionary app.
Check pronunciation:
octahedron