Akademik

oro-

comb. form mountain.
Etymology: Gk oros mountain

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I. combining form

Etymology: Greek oros mountain — more at rise

orography

orogenesis

orophyte

orometer

II. combining form

Etymology: Latin or-, os mouth — more at oral

oropharynx

: mouth and

oroanal

orofacial

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oro-¹

a combining form meaning "mountain," used in the formation of compound words: orography.

[ < Gk, comb. form of óros]

oro-²

a combining form meaning "mouth," used in the formation of compound words: oropharynx.

[comb. repr. L os, s. or-]

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comb. form of or relating to mountains

orogeny

Origin:

from Greek oros ‘mountain’

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oro-

formative element repr. Gr. ὄρος mountain (as in orometric (1774), orology (1781)). For the var. oreo- see etym. of orography.

Useful english dictionary. 2012.