ortho-
Top
or orth-
pref.
pref.
- Straight; upright; vertical: orthotropous.
- Perpendicular: orthorhombic.
- Correct; correction: orthopsychiatry.
- The most fully hydrated form of an acid or of its salts: orthoboric acid.
- Diatomic molecules in which the nuclei have the same spin direction: orthohydrogen.
- Of or relating to one of three possible isomers of a benzene ring with two attached chemical groups in which the carbon atoms with attached groups are adjacent: ortho-dibromobenzene.
[Middle English, from Old French, from Latin, from Greek, from orthos, straight, correct, right.]
or orth–
pref.
pref.
- Straight; upright; vertical: orthotropic.
- Correct; correction: orthopsychiatry.
- Hydrated form of an acid or of its salts: orthoboric acid.
- Diatomic molecules in which the nuclei have the same direction of spin: orthohydrogen.
- ortho– (Abbr. o–) Of or relating to one of three possible isomers of a benzene ring with adjacent carbon atoms having attached chemical groups. Usually used in italic: ortho-dibromobenzene.
Top
abbr.: o-; prefix (in chemical nomenclature) denoting an isomer of a disubstituted monocyclic aromatic compound in which the substituents are attached at positions 1 and 2 of the ring. Compare meta-, para-.
| ortho, oriC | |
| ortho- and peri-fused, ortho-fused, +oate |
Random House Word Menu:
Top
categories related to 'ortho-'
- Prefixes and Suffixes - ortho-: erect, straight, normal
- Prefixes - ortho-: straight (orthopedic)
Post a question - any question - to the WikiAnswers community:
Copyrights:
American Heritage Dictionary
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
Read more
American Heritage Stedman's Medical Dictionary
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company.
Read more
Oxford Dictionary of Biochemistry
Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved.
Read more
