Definitions for orthoˈɔr θoʊ

This page provides all possible meanings and translations of the word ortho

Random House Webster's College Dictionary

or•thoˈɔr θoʊ(adj.)

  1. pertaining to or occupying two adjacent positions in the benzene ring.

    Category: Chemistry

    Ref: Compare meta , 1 2 para2. 1 3

Origin of ortho:

1875–80; independent use of ortho -

ortho-

  1. a combining form meaning “straight,”“upright,”“right,”“correct”:

    orthodontics; orthopedic.

    Category: Affix

  2. a combining form used in the name of the most hydrated acid in a given series: orthoboric acid. a combining form used in the names of benzene derivatives in which the substituting group occupies the ortho position in the benzene ring.

    Category: Affix, Chemistry

    Ref: Compare meta- (def. 2a), 3 2 1 pyro- (def. 2a). 2 2 1; Also, esp. before a vowel, orth- 1 .

Origin of ortho-:

< Gk, comb. form of orthós straight, upright, correct

Wiktionary

  1. ortho(Noun)

    An isomer of a benzene derivative having two substituents adjacent on the ring

  2. ortho(Noun)

    A certain type of flat eyepiece

  3. ortho(Noun)

    An orthochromatic plate

  4. ortho(Noun)

    An orthophoto

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