Definition of -hedron in English:

-hedron

Pronunciation: /ˈhiːdrən, ˈhɛd-/

combining form (plural -hedra or -hedrons)

1In nouns denoting geometrical solids having a specified number of plane faces: decahedron
1.1Denoting geometrical solids having faces of a specified shape: rhombohedron

Origin

from Greek hedra 'seat, base'.

Derivatives

-hedral

combining form
In corresponding adjectives.

Definition of -hedron in:

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Pronunciation: ˈflɪp(ə)nt
adjective
not showing a serious or respectful attitude