Pro͞of'-spĭr'it, n.
n. A mixture of pure alcohol and water in the proportions by weight of 100 parts of alcohol to 103.09 of water, and by measure of 100 parts of alcohol to 81.82 of water. Ure.
n. A mixture of pure alcohol and water in the proportions by weight of 100 parts of alcohol to 103.09 of water, and by measure of 100 parts of alcohol to 81.82 of water. Ure.