Suture, a sewing; the uniting of parts by stitching; the seam or joint which unites the flat bones of the skull, which are notched like the teeth of a saw, and the notches, being united together, present the appearance of a seam.

Tartar, a substance, deposited on the inside of wine casks, consisting chiefly of tartaric acid and potash. Cream of tartar, the crude tartar separated from all its impurities, by being dissolved in water and then crystallized, when it becomes a perfectly white powder.

Tartaric acid, a vegetable acid which exists in the grape.

Technology, a description of the arts, considered generally, in their theory and practice, as connected with moral, political, and physical science.

Three great Jewish yearly festivals, see Festivals.

Three-ply, or triple ingrain, a kind of carpeting, in which the threads are woven in such a manner as to make three thicknesses of the cloth.

Tic douloureux, a painful affection of the nerves, mostly those of the face.

Tocqueville, (Alexis de,) a celebrated living statesman and writer of France, and author of volumes on the Political Condition, and the Penitentiaries, of the United States, and other works.

Trachea, the windpipe, so named (from a Greek word signifying rough) from the roughness, or inequalities, of the cartilages of which it is formed.

Truckle-bed, or trundle-bed, a bed that runs on wheels.