Alkali—the direct opposite of an acid, with which it has a tendency to unite.

Alumina—the base of clay.

Analysis—separating into its primary parts any compound substance.

Carbonate—a compound, consisting of carbonic acid and an alkali.

Caustic—burning.

Chloride—a compound containing chlorine.

Clevis—that part of a plow by which the drawing power is attached.

Decompose—to separate the constituents of a body from their combinations, forming new kinds of compounds.

Digestion—the decomposition of food in the stomach and intestines of animals (agricultural).

Dew—deposit of the insensible vapor of the atmosphere on cold bodies.