the world > food and drink > drink > manufacture of alcoholic drink > brewing > [noun] > vat or vessel for brewing or fermenting > top of or frame (3)
A variant of curb, n. (dialect in later use). See esp. quot. 1890.
The rounded top of a brewer's or distiller's copper.
In various other technical senses, some of which are difficult to classify. A ‘stilling’ or stand in a brewery to support a cask, etc. Obsolete.