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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 ?
Histopatolojik inceleme icin otopsi sirasinda infarkt dusunulen alandan, cevre miyokarddan ve koroner arterlerden alinan ve %10 formalin ile fikse edilen doku ornekleri doku takibine sokuldu, parafin bloklara gomulen dokulardan alinan 4 mikron kalinligindaki kesitler Hematoksilen-eosin boyasi ile boyanarak isik mikroskobunda incelendi.
Then the embryos were placed into plastic straws capped with parafin. Those straws were then placed in a -20[degrees]C freezer until thaw.
I WOULD like to find any ex-Lucas Victor Works, Broadgreen, Parafin Test House guys who worked there between 1952-1957.
14 floors up, eh never stood a snowball's chance in hellA police dog dies in FilthThe dugs kicked as Doyle poured parafin ower them.
(22) New slides created from organs retained in a parafin block are called "recuts."
Chestnut, although high in tannin (a by-product of the wood which in proper amounts improves the taste and allows a red wine to age by gobbling up oxygen which would otherwise spoil the wine) is too porous and must be coated with parafin to prevent excessive wine loss through evaporation.
As the exact point of bleeding could not be determined, an anterior nasal tamponade using a parafin gauze dressing was performed, following which all bleeding ceased.
Another method is to fill the casting cavity with pressurized parafin, which can penetrate into the smallest crevices or porous metal occlusions.