Ortho- (prefix)
Prefix meaning straight or erect. From the Greek "orthos" that means just that: straight or erect. Examples of terms involving ortho- include orthodontics (straightening the teeth), orthopaedics (straightening the child), orthopnea (breathing easily only in an upright position), orthostatic (an upright posture), etc.

Medical dictionary. 2011.

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  • ortho-Vanillin — IUPAC name 2 Hydroxy 3 methoxybenzaldehyde …   Wikipedia

  • Ortho-vanillin — Chembox new Name = Ortho Vanillin ImageFile = ortho vanillin.png ImageSize = 150px IUPACName= 2 Hydroxy 3 methoxybenzaldehyde OtherNames = o vanillin 3 methoxysalicylaldehyde CASNo= 148 53 8 ChemSpiderID = 21105848 Section2 = Chembox Properties… …   Wikipedia

  • ortho- — prefix denoting 1. straight. Example: orthograde (having straight posture). 2. normal. Example: orthocrasia (normal reaction to drugs). * * * 1. symbol o ; in organic chemistry, a prefix indicating a 1,2 substituted benzene ring, e.g., o xylene… …   Medical dictionary

  • ortho- — (prefix) straight, upright, at right angles …   Dictionary of ichthyology

  • ortho- — 1. a word element meaning straight , upright , right , correct , used in combination. 2. Chemistry a. a prefix indicating that acid of a series which contains most water. Compare meta , pyro . b. a prefix applied to a salt of one of these acids:… …   Australian English dictionary

  • ortho-, orth- — 1. Prefix denoting straight, normal, in proper order. 2. (o ) In chemistry, italicized prefix denoting that a compound has two substitutions on adjacent carbon atoms in a benzene ring. For terms beginning o. or o , see the specific name. 3. The… …   Medical dictionary

  • List of organic compounds — This page aims to list well known organic compounds, including organometallic compounds, to stimulate the creation of Wikipedia articles. Note that purely inorganic compounds, minerals, and chemical elements are not included on this list. There… …   Wikipedia

  • Arene substitution patterns — are part of organic chemistry IUPAC nomenclature and pinpoint the position of substituents other than hydrogen in relation to each other on an aromatic hydrocarbon. Contents 1 Ortho, meta, and para substitution 2 Ipso, meso, and peri substitution …   Wikipedia

  • orth- — See ortho . * * * orth or ortho prefix 1) hydrated or hydroxylated to the highest degree <orthophosphoric acid> 2) involving substitution at or characterized by or having the relationship of two neighboring positions in the benzene ring… …   Medical dictionary

  • Chlorite group — For the chemistry term, see chlorite. Chlorite group General Category Mineral Chem …   Wikipedia

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