英语词汇“ortho”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

or•tho adj. [Chem.]

Chemistrypertaining to or occupying two adjacent positions in the benzene ring. Cf. meta ², para ³.

independent use of ortho- 1875–80

ortho-,

a combining form occurring in loanwords from Greek, where it meant "straight,'' "upright,'' "right,'' "correct'' (orthodox) and on this model used in the formation of compound words (orthopedic).
Chemistry
- a combining form used in the name of that acid in a given series of acids that contains the most water (orthoboric acid). Cf. meta-, pyro-.
- Chemistrya combining form used in the names of the salts of these acids: if the acid ends in -ic, the corresponding salt ends in -ate (orthoboric acid (H₃BO₃) and potassium orthoborate (K₃BO₃))* if the acid ends in -ous, the corresponding salt ends in -ite (orthoantimonous acid (H₃SbO₃) and potassium orthoantimonite (K₃SbO₃)).

Also,[esp. before a vowel,] orth-.

Greek, combining form of orthós straight, upright, correct

ortho-, prefix.

ortho- comes from Greek, where it has the meaning "straight, upright, right, correct '':ortho- + graph → orthography (= correct writing);ortho- + dontics → orthodontics (= dentistry dealing with straightening teeth);ortho- + pedic → orthopedic (= correction of improper bone structure from childhood).

ortho-, (before a vowel)orth- combining form

straight or upright: orthotropous
perpendicular or at right angles: orthoclastic
correct or right: orthodontics, orthodox, orthography, orthoptics
(often in italics) denoting an organic compound containing a benzene ring with substituents attached to adjacent carbon atoms (the 1,2- positions)
Compare oarsman
Compare oarsman
denoting an oxyacid regarded as the highest hydrated form of the anhydride or a salt of such an acid: orthophosphoric acid
denoting a diatomic substance in which the spins of the two atoms are parallel: orthohydrogen

Etymology: from Greek orthos straight, right, upright

单词	ortho
释义	WordReference Random House Unabridged Dictionary of American English © 2024 or•tho (ôr′thō),USA pronunciation adj. [Chem.] Chemistrypertaining to or occupying two adjacent positions in the benzene ring. Cf. meta ², para ³. independent use of ortho- 1875–80 ortho-, a combining form occurring in loanwords from Greek, where it meant "straight,'' "upright,'' "right,'' "correct'' (orthodox) and on this model used in the formation of compound words (orthopedic). Chemistry a combining form used in the name of that acid in a given series of acids that contains the most water (orthoboric acid). Cf. meta-, pyro-. Chemistrya combining form used in the names of the salts of these acids: if the acid ends in -ic, the corresponding salt ends in -ate (orthoboric acid (H₃BO₃) and potassium orthoborate (K₃BO₃))* if the acid ends in -ous, the corresponding salt ends in -ite (orthoantimonous acid (H₃SbO₃) and potassium orthoantimonite (K₃SbO₃)). `Also,[esp. before a vowel,] orth-.` Greek, combining form of orthós straight, upright, correct WordReference Random House Learner's Dictionary of American English © 2024 ortho-, prefix. ortho- comes from Greek, where it has the meaning "straight, upright, right, correct '':ortho- + graph → orthography (= correct writing);ortho- + dontics → orthodontics (= dentistry dealing with straightening teeth);ortho- + pedic → orthopedic (= correction of improper bone structure from childhood). Collins Concise English Dictionary © HarperCollins Publishers:: ortho-, (before a vowel)orth- combining form straight or upright: orthotropous perpendicular or at right angles: orthoclastic correct or right: orthodontics, orthodox, orthography, orthoptics (often in italics) denoting an organic compound containing a benzene ring with substituents attached to adjacent carbon atoms (the 1,2- positions) Compare oarsman Compare oarsman denoting an oxyacid regarded as the highest hydrated form of the anhydride or a salt of such an acid: orthophosphoric acid denoting a diatomic substance in which the spins of the two atoms are parallel: orthohydrogen Etymology: from Greek orthos straight, right, upright
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