octahedron

English

An octahedron

Alternative forms

• octohedron

Etymology

From Ancient Greek ὀκτάεδρον (oktáedron). By surface analysis, octa- +‎ -hedron.

Pronunciation

• Audio (UK):

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Noun

octahedron (plural octahedra or octahedrons)

1. (geometry) a polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.

Derived terms

• cuboctahedron
• cubooctahedron
• hexakisoctahedron
• hexoctahedron
• hyperoctahedron
• stellated octahedron
• superoctahedron
• trisoctahedron
• truncated octahedron

Related terms

• octahedral

Translations

a polyhedron with eight faces

• Bulgarian: октаедър (bg) m (oktaedǎr)
• Catalan: octaedre (ca) m, octàedre (ca) m
• Chinese:

  Mandarin: 八面體 / 八面体 (zh) (bāmiàntǐ)

• Czech: osmistěn (cs) m, oktaedr m
• Danish: oktaeder n
• Dutch: regelmatig achtvlak n, octaëder (nl) m
• Esperanto: okedro
• Finnish: oktaedri (fi)
• French: octaèdre (fr) m
• German: Oktaeder (de) n or m, Achtflächner (de) m, 8-Flächner m
• Greek:

  Ancient Greek: ὀκτάεδρον n (oktáedron)

• Hindi: अष्टफलक m (aṣṭphalak)
• Hungarian: oktaéder (hu)
• Icelandic: áttflötungur m
• Indonesian: oktahedron (id), bidang delapan
• Italian: ottaedro (it) m
• Japanese: 八面体 (はちめんたい, hachimentai)
• Korean: 팔면체 (ko) (palmyeonche)
• Latin: octahedrum n
• Polish: ośmiościan (pl) m, oktaedr m
• Portuguese: octaedro (pt) m
• Russian: окта́эдр (ru) m (oktáedr), восьмигра́нник (ru) m (vosʹmigránnik)
• Spanish: octaedro (es) m
• Swedish: oktaeder (sv) c
• Tagalog: waldayag
• Vietnamese: bát diện (vi)