underproof


Also found in: Acronyms.

un·der·proof

 (ŭn′dər-pro͞of′)
adj.
Having a smaller proportion of alcohol than proof spirit.

underproof

(ˌʌndəˈpruːf)
adj
(Brewing) (of a spirit) containing less than 57.1 per cent alcohol by volume

un•der•proof

(ˈʌn dərˈpruf)

adj.
containing a smaller proportion of alcohol than proof spirit.
[1855–60]
Mentioned in ?