Wiktionary
n. (context organic compound English) a heterocyclic ether having a five-membered ring with four carbon atoms and one oxygen; it is a colourless liquid with an ether-like smell, and is used as a polar solvent
Wikipedia
Tetrahydrofuran (THF) is an organic compound with the formula (CH)O. The compound is classified as heterocyclic compound, specifically a cyclic ether. It is a colorless, water- miscible organic liquid with low viscosity. It is mainly used as a precursor to polymers. Being polar and having a wide liquid range, THF is a versatile solvent.
This page provides supplementary chemical data on tetrahydrofuran.
Usage examples of "tetrahydrofuran".
Now heat this solution in a water bath until most of the tetrahydrofuran is evaporated and a gooey substance remains.