English
Etymology
:from Gr. ��� (orthos)
Prefix
ortho-
#straight, right, proper
#chemistry Having an extra proportion of water
#chemistry in isomeric benzene derivatives, having the two substituents in adjacent positions (compare meta- and para-)
#physics of any molecule of the form X<sub>2</sub> in which the two nuclei have parallel spin
Derived terms
orthocentre
orthochromatic
orthoclase
orthoclastic
orthodontic
orthodontis
orthodontist
orthodox
orthodoxy
orthodromic
orthodrome
orthoepy
orthogenesis
orthognathous
orthogon
orthogonal
orthogonalization
orthograde
orthograph
orthographic
orthographical
orthography
orthohelium
orthohydrogen
orthology
orthometric
orthonormal
orthopedic
orthopedist
orthopedy
orthopraxy
orthopsychiatry
orthopter
Ortheptera
orthorhombic
orthoscope
orthoscopic
orthosis
orthostat
orthostatic
orthosteric
orthotropic
French
Etymology
:from Gr. ��� (orthos)
Prefix
ortho-
#right
Derived terms
orthodentie
orthodentiste
orthopédie
Pronunciation
Category:English prefixes
de:ortho-
fr:ortho-
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