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 (fyo͝or′ăn′, fyo͝o-răn′)
1. A colorless, volatile, heterocyclic organic compound, C4H4O, obtained from wood oils and used primarily in organic synthesis. Also called furfuran.
2. Any of various derivatives of this compound.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈfjʊəræn; fjʊəˈræn)
(Elements & Compounds) a colourless flammable toxic liquid heterocyclic compound, used in the manufacture of cotton textiles and in the synthesis of nylon. Formula: C4H4O. Also called: furfuran
[C19: shortened form of furfuran, from furfur]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈfyʊər æn, fyʊˈræn)

a colorless, liquid, unsaturated, five-membered heterocyclic compound, C4H4O, obtained from furfural: used chiefly in organic synthesis.
[1890–95; shortening of furfuran < German Furfuran (1879); see furfural, -an2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.furan - a colorless toxic flammable liquid used in the synthesis of nylon
organic compound - any compound of carbon and another element or a radical
nitrofuran - derivative of furan used to inhibit bacterial growth
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
For the current study, researchers examined fumes released by e-cigarette liquids with different concentrations of three types of sugars, testing the vapor for levels of two toxins known as furans: 5-hydroxymethylfurfural (HMF) and furfural (FA), which have been linked to an increased risk of respiratory tract damage in humans and tumors in mice.
Some of the pollutants belong to a family of extremely harmful chemicals known as POPs, including cancer-causing dioxins and furans which result from the burning of chlorinated materials.
The cellulose produces highly oxygenated compounds, including levoglucosan and furans, while the lignin's produce primarily , Intmuumuus a phenolic compounds.
If the products contain PVC plastic, highly toxic dioxins and furans are also released.
He says his ministry has done its own testing and found high concentrations of dioxins and furans in Bloody Run Creek which leech into the Niagara River and eventually Lake Ontario which provides drinking water for thousands.
Other halogenated dioxins and furans, as well as coplanar PCBs, may trigger similar effects.
Coffee made espresso makers contain more toxic, carcinogenic furans than regular drip machine brews or even instant coffee, according to research conducted at the University of Barcelona.
Dioxins and furans were evaluated in attic dust of residential structures and in blood of residents of four communities where wood treatment facilities are located: Alexandria, Louisiana; Pineville, Louisiana; Grenada, Mississippi; and Florala, Alabama.
In Europe, the legal limit for the presence of dioxins and furans in feed materials is 0.75 ng/kg, according to EU Directive 2002/32.