PROOF a.
and 53.71 parts of water," the apparent excess of water being due to contraction of the liquids on mixture. In England proof spirit is defined by Act 58, George III., to be such as shall at a temperature of 51º Fahrenheit weigh exactly the second, third, and fourth proof spirits respectively. -- Proof staff, a straigh…
PUDDLING n.
ng clay, loam, pulverized ore, etc., with water, to render it compact, or impervious to liquids; also, the process of rendering anything impervious to liquids by means of puddled material.
PYROSULPHURIC a.
phuric acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, H2S2O7 resembling sulphuric acid. It is used in the solution of indigo, in the manufacture of alizarin, and in dehydration.
Q n.
. Etymologically, q or qu is most nearly related to a (ch, tch), p, q, and wh; as in cud, quid, L. equus, ecus, horse, Gr. equine, hippic; L. quod which, E. what; L. aquila, E. eaqle; E. kitchen, OE. kichene, AS. cycene, L. coquina.