TETRAKOSANE
Tet"ra*ko*sane`, n. Etym: [Tetra- + Gr. (Chem.)
Defn: A hydrocarbon, C24H50, resembling paraffin, and like it belonging to the marsh-gas series; — so called from having twenty- four atoms of carbon in the molecule.
TETRALOGY
Te*tral"o*gy, n. Etym: [Gr. Tetra-) + tétralogie.] (Gr. Drama)
Defn: A group or series of four dramatic pieces, three tragedies and one satyric, or comic, piece (or sometimes four tragedies), represented consequently on the Attic stage at the Dionysiac festival.
Note: A group or series of three tragedies, exhibited together without a fourth piese, was called a trilogy.
TETRAMERA
Te*tram"e*ra, n. pl. Etym: [NL. See Tetramerous.] (Zoöl.)
Defn: A division of Coleoptera having, apparently, only four tarsal joints, one joint being rudimentary.
TETRAMEROUS
Te*tram"er*ous, a. Etym: [Tetra- + Gr.
1. (Bot.)
Defn: Having the parts arranged in sets of four; as, a tetramerous flower.