Alcohols substituted by a cyano group, most commonly, but not limited to, examples having a cyano and a hydroxy group attached to the same carbon atom, formally derived from aldehydes or ketones by the addition of hydrogen cyanide. An individual cyanohydrin can systematically be named as a hydroxy nitrile, e.g. (CH3)2C(OH)C≡N 'acetone cyanohydrin' (2-hydroxy-2-methylpropanenitrile), HOCH2CH2C≡N 'ethylene cyanohydrin' (3-hydroxypropanenitrile).
See: halohydrins
PAC, 1995, 67, 1307 (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1329