paraffin

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paraffin

 [par´ah-fin]
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.

par·af·fin

(par'ă-fin),
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]

paraffin

/par·af·fin/ (par´ah-fin)
1. a purified hydrocarbon wax used for embedding histological specimens and as a stiffening agent in pharmaceutical preparations.
2. alkane.

liquid paraffin  mineral oil.

paraffin

[per′əfin]
Etymology: L, parum, little + affinis, related
any of a group of hydrocarbons or hydrocarbon mixtures of the paraffin series as indicated by the formula, CnH(2n+2). Examples include methane gas, kerosene, and paraffin wax. Also called alkane.

alkane

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.

hard par·af·fin

(hahrd pară-fin)
Purified mixture of solid hydrocarbons derived from petroleum.
Synonym(s): paraffin (2) .

paraffin (par´əfin),

n a group of hydrocarbons or hydrocarbon mixtures of the paraffin series as indicated by the formula C11H(2n+2). Examples include methane gas, kerosene, and paraffin wax.

paraffin

1. a purified hydrocarbon wax used for embedding histological specimens.
2. a saturated hydrocarbon used as a fuel oil. Poisoning causes gastroenteritis and aspiration pneumonia, the latter being secondary to vomiting. Called also alkane, kerosene, lamp oil. See also oil.
3. petrolatum.

paraffin embedding technique
the most commonly used technique for the preparation of slides of tissue for light microscopic examination.
liquid paraffin
liquid petrolatum. See mineral oil.
References in periodicals archive ?
Jan Veldwijk, Meta's Chief Executive Officer, stated, "We were shocked when we were informed of the press release issued by ParaFin Corporation.
Repeat this about three or four times (reheating the parafin up to the desired temperature, if necessary).
Under the Agreement, ParaFin will initially pay US$500,000 to Guarani and, in addition, pay 100% of all costs associated with the acquisition of new seismic, the interpretation of such new and existing seismic and drilling, completing and equipping to the tanks (or abandonment) of the first two wells drilled by Guarani on the Alto Parana Block pursuant to the terms of a license.
Bazi ajanlara parafin veya mineral yaglar eklenerek deriyi daha yumusak ve esnek yapmalari saglanir.
The operations of the Pacol unit enables UIC to keep its production cost low because the price of parafin is low (US$ 400/ton) compared to that of olefin (US$ 700-800/ton).
Jacobs will perform assignments in the ethylene, vinyl chloride monomer (VCM), alcohol, normal parafin unit (NPU) and linear alkyl benzene (LAB) units located at the Lake Charles complex.
Amerikan Gida ve Ilac Dairesi (FDA) tarafindan, deriyi koruyucu ajanlar basligi altinda diaper dermatitinde kullanimina izin verilmis olan urunlerin icerigindeki aktif maddelerin listesi (5) Aktif madde Izin verilen Aktif madde Izin verilen miktar (%) miktar (%) Allantoin 0,5-2 Kalamin 1-25 Aluminyum 0,15-5 Kakao yagi 50-100 hidroksit jel Balik yagi 5-13,56 * Kaolin 420 Beyaz parafin 30-100 Kati yag 50-100 cinko asetat 0,1-2 Kolloidal yulaf 0,007-0,003 ** ezmesi cinko karbonat 0,2-2 Lanolin 12,5-50 *** cinko oksit 1-25 Mineral yag 50-100 Dimetikon 1-30 Topikal nisasta 10-98 Gliserin 2045 Vazelin 30-100 * En fazia 10.
Ancak ultrasonun, faradik akim, parafin ve egzersiz gibi baska tedavi modaliteleri ile birlikte uygulanmasi ile semptomatik iyilesmeye ek katki saglamadigi gorulmustur.
Su ile haslanma, gazyagi ve parafin yaniklari ve kostik ajanlarla karsilasma ayirici tanida dusunulebilecek diger durumlardir (25,30-32).
Immunohistokimyasal boyamalar, parafin bloklardan hazirlanan kesitlere peroksidaz-antiperoksidaz (PAP) yontemi ile DAB kromojeni kullanilarak uygulandi.