Definition of orth-
1 : straight : upright : vertical <orthograde>
2 : perpendicular <orthorhombic>
3 : correct : corrective <orthodontia>
4 a : hydrated or hydroxylated to the highest degree <orthophosphoric acid> b : involving substitution at or characterized by or having the relationship of two neighboring positions in the benzene ring <ortho-xylene>
Variants of orth-
Origin of orth-
Greek, from orthos straight, right, true; akin to Sanskrit ūrdhva high, upright
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Medical Dictionary: Definition of "orth-"
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