Illustrated Glossary of Organic Chemistry

Cyanohydrin: A functional group characterized by a hydroxyl group and a nitrile group bonded to the same sp³ carbon atom, or a molecule containing this functional group.

General cyanohydrin structure.

Acetone cyanohydrin (2-Hydroxy-2-methylpropanenitrile)		Benzaldehyde cyanohydrin (2-Hydroxy-2-phenylacetonitrile)