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Related to paraffins: paraffin wax, Aromatics


1. a purified mixture of solid hydrocarbons from petroleum, used for embedding histological specimens and as a stiffening agent in pharmaceutical preparations.
2. alkane.
liquid paraffin see mineral oil.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


1. One of the methane series of acyclic hydrocarbons.
2. Synonym(s): hard paraffin
[L. parum, little, + affinis, neighboring, akin, so called because of its slight tendency to chemical reaction]
Farlex Partner Medical Dictionary © Farlex 2012


Any of a number of saturated aliphatic (straight-chain) hydrocarbons of the methane series (methane, ethane, propane, butane, pentane, hexane, septane, octane, nonane, decane, etc.), in which the carbons are joined to other carbons by single bonds.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

hard par·af·fin

(hahrd pară-fin)
Purified mixture of solid hydrocarbons derived from petroleum.
Synonym(s): paraffin (2) .
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
On the basis of product, the global chlorinated paraffins market is segmented into:
Based on application, the chlorinated paraffins market is segmented into:
The environmental and health concerns relating to medium-chain chlorinated paraffins and long-chain chlorinated paraffins may be similar to those associated with short-chain chlorinated paraffins.
"This settlement will require Dover to participate in an EPA review of all types of chlorinated paraffin products sold by the company and bring Dover into compliance with the Toxic Substances Control Act," said Ignacia S.
For instance, although the lubricant's interwoven mat of snake-like hydrocarbons starts out like an ordinary liquid, as the tip of the atomic force microscope (AFM) begins to squeeze the lubricant against the larger, gold surface, the paraffin starts to undergo structural changes.
Offers antimony oxide, zinc borate, solid and liquid chlorinated paraffins, alumina trihydrate, magnesium hydroxide, and phosphate ester plasticizers.
The products can be used with either paraffins or esters; when combined with the latter, they reportedly eliminate the need for processing aids.
Offers a complete line of flame retardants, including antimony oxide, zinc borate, solid and liquid chlorinated paraffins, alumina trihydrate, magnesium hydroxide, and phosphate ester plasticizers.
Plasticizers include phthalates, adipates, sebacates, chlorinated paraffins and proprietary diesters for PVC or acrylonitrile-based resins.
Flexchlor 0010 chlorinated paraffin is reportedly an excellent secondary plasticizer for vinyl, offering flame retardancy as well.
The firm has Turkish Standards Institute's Quality Certificate, and has the distinction of being the first company in Turkey, who is a local supplier of paraffin cylinders.
On the campus of NASA's Ames Research Center in Mountain View, Calif., you periodically hear--and feel--a thunderous roar as engineers ignite experimental rocket engines that are chock full of the same paraffin wax that illuminates candlelight dinners.