[f. Gr. τετρακαιδεκα- fourteen + ἔδρα base.] A fourteen-sided solid figure. Also tessarescædecahedron (Cent. Dict.).
1894. Athenæum, 17 Feb., 216/3. At the request of Lord Kelvin … Mr. J. J. Walker exhibited and described Lord Kelvin’s models of his ‘Tetrakaidekahedron.’
