Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.


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 ?
The solvent extraction ratios of PB and paraffin oil are compared in Fig.
Halbouty's unique patented mechanism to convert crystalline wax to an amorphous form results in increased paraffin wax solubility in crude oil.
Seven strains were isolated with paraffin baiting technique as compared with Sabouraud dextrose agar, Sabouraud dextrose agar with cycloheximide and paraffin agar (Table 1).
He managed to take the oil and tease from it paraffin wax, naphtha, light and lubricating oil.
KEY WORDS: Post-traumatic stiff hand, Joint mobilization techniques, Paraffin wax bath.
Sterile paraffin coated slides were dipped into Czapek broth and it was incubated at 37[degrees]C and checked daily for growth.
The quality raw material is the most important aspect for production of qualified paraffin cylinder.
With GTL normal paraffin, Pearl GTL brings to the marketplace a valuable speciality product that will find its way into the growing detergents industry."
The team has now tested spherical capsules just 38 millimetres in diameter containing a blend of paraffin and stearic acid, which can be floated on the top of water in a tank.
To make the fire wicks, lower a length of cotton string into an old saucepan in which a pound of paraffin has been heated to its liquid state.
The well started operating on June 24, 2011, with a flush production rate based on oil in the casing that had been used to treat the paraffin problem.