[te-truh-hahy-druh-fyoo r-an]
noun Chemistry.
  1. a clear liquid, C4H8O, soluble in water and organic solvents, used as a solvent for resins, in polymerizations and as a chemical intermediate.

Origin of tetrahydrofuran

First recorded in 1940–45; tetra- + hydro-2 + furan
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

tetrahydrofuran in Science


  1. A clear, highly flammable liquid used as a solvent for natural and synthetic resins and in the production of nylon. Tetrahydrofuran is a furan ring without double bonds between any of the carbon atoms. It is the building block of the sugars ribose, deoxyribose, and fructose.Chemical formula: C4H8O.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.