| 单词 | ortho- |
| 释义 | ortho- or before a vowel orth- combining form 1. straight or upright orthotropous 2. perpendicular or at right angles orthoclastic 3. correct or right orthodontics orthodox orthography orthoptics 4. (often in italics) denoting an organic compound containing a benzene ring with substituents attached to adjacent carbon atoms (the 1,2- positions) orthodinitrobenzene Abbreviation: o-. Compare meta- (sense 4), Compare para-1 (sense 6)5. denoting an oxyacid regarded as the highest hydrated form of the anhydride or a salt of such an acid orthophosphoric acid meta- (sense 6)6. denoting a diatomic substance in which the spins of the two atoms are parallel orthohydrogen para-1 (sense 8) Word origin from Greek orthos straight, right, upright |
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