A traditional term for alcohols substituted by a halogen atom at a saturated carbon atom otherwise bearing only hydrogen or hydrocarbyl groups (usually used to mean β-halo alcohols). E.g.
BrCH2CH2OH 'ethylene bromohydrin' (2-bromoethanol),
ClCH2CH2CH2OH 'trimethylene chlorohydrin' (3-chloro-propan-1-ol),
PhCH(OH)CH2Cl 'styrene chlorohydrin' (2-chloro-1-phenylethanol).
Source:
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1338 (https://doi.org/10.1351/pac199567081307)