hemiacetal

[ hem-ee-as-i-tal ]
/ ˌhɛm iˈæs ɪˌtæl /

noun

any of the class of organic chemical compounds having the general formula RCH(OH)OR, where R is an organic group.

Origin of hemiacetal

First recorded in 1890–95; hemi- + acetal

Medical definitions for hemiacetal

hemiacetal
[ hĕm′ē-ăsĭ-tăl′ ]

n.

Any of a class of compounds containing an alkyl group, especially when formed as intermediates during the preparation of acetals from aldehydes or ketones.