| 释义 |
orth-
orth-pref. Variant of ortho-.orth- var. of ortho- before a vowel: orthicon. Orth. Orthodox. orth-
orth(o)- word element [Gr.], straight; normal; correct. In chemistry, ortho- indicates an isomer; also, a cyclic derivative having two substitutes in adjacent positions.ortho- , orth-1. Prefix denoting straight, normal, in proper order. 2. In chemistry, italicized prefix denoting that a compound has two substitutions on adjacent carbon atoms in a benzene ring. For terms beginning ortho- or o-, see the specific name. 3. The most hydrated of a series of oxoacids, for example, orthophosphoric acid, H3PO4. [G. orthos, correct] ortho- , orth-1. Combining forms meaning straight, normal, in proper order. 2. chemistry Italicized prefix denoting that a compound has two substitutions on adjacent carbon atoms in a benzene ring. For terms beginning ortho- or o-, see the specific name. ortho- , orth-Combining forms meaning straight, normal, in proper order. |