ortho-

See also: ortho

English

Alternative forms

• orth- (before vowel)

Etymology

From Ancient Greek ὀρθός (orthós).

Prefix

ortho-

1. Straight, right, proper.

   Synonym: recti-

   orthodoxy orthography orthopedics

2. (chemistry) Having an extra proportion of water.
3. (organic chemistry) in isomeric benzene derivatives, having the two substituents in adjacent (2,6) positions (compare meta- and para-).
4. (physics) of any molecule of the form X₂ in which the two nuclei have parallel spin.

Derived terms

English terms prefixed with ortho-

• orthocenter
• orthodontist
• orthodox
• orthographic
• ortholinear
• orthometric
• orthopedics
• orthotic
• orthotist

 

Anagrams

• Rooth, thoro

Danish

Prefix

ortho-

1. right, proper

   ortodoks

2. (organic chemistry) ortho-

Coordinate terms

• (organic chemistry): meta-, para-

Derived terms

Category Danish terms prefixed with ortho- not found

French

Etymology

From Ancient Greek ὀρθός (orthós).

Pronunciation

• IPA^(key): /ɔʁ.to/

Prefix

ortho-

1. right

Derived terms

• orthodentie
• orthodentiste
• orthopédie