Tetrandria, te-tran′dri-a, n. the fourth class of the Linnæan classification of plants, containing those with four stamens in a flower.—adjs. Tetran′drian, Tetran′drous. [Gr., tetra-, four, anēr, andros, a man.]
Tetrao, tet′rā-o, n. the chief genus of the family Tetraonidæ, which also includes quails and partridges. From these the grouse (forming a subfamily, Tetraoninæ) are distinguished. The genus Tetrao is represented by the Capercailzie and the Blackcock or Black Grouse. [L.,—Gr. tetraōn, a pheasant.]
Tetrapetalous, tet-ra-pet′a-lus, adj. (bot.) having four distinct petals or flower-leaves.
Tetraphyllous, tet-ra-fil′us, adj. having four leaves: consisting of four distinct leaves or leaflets. [Gr., tetra-, four, phyllon, a leaf.]
Tetrapla, tet′ra-pla, n. a Bible consisting of four different versions in parallel columns, originally the edition of the Old Testament published by Origen, containing four Greek versions (those of Aquila, Symmachus, Theodotion, and the Septuagint). [Gr. tetraplous, fourfold.]
Tetrapod, tet′ra-pod, n. an insect distinguished by having but four perfect legs.—adj. four-footed, with four legs—also Tetrap′odous.—n. Tetrap′ody, a group of four feet. [Gr., tetra-, four, pous, podos, foot.]
Tetrapolitan, tet-ra-pol′i-tan, adj. pertaining to a Tetrap′olis or a group of four towns.—Tetrapolitan Confession, the Confession which the four cities of Strasburg, Constance, Memmingen, and Lindau presented to the Diet of Augsburg (11th July 1530), and, properly speaking, the first Confession of the Reformed Church.
Tetrapterous, te-trap′te-rus, adj. having four wings.—Also Tetrap′teran. [Gr., tetra-, four, pteron, a wing.]
Tetraptote, tet′rap-tōt, n. a noun with but four cases. [Gr., tetra-, four, ptōsis, a case.]
Tetrarch, tet′rärk, or tē′, n. under the Romans, the ruler of the fourth part of a province: a subordinate prince: the commander of a subdivision of a Greek phalanx.—ns. Tet′rarchate, Tet′rarchy, office or jurisdiction of a tetrarch: the fourth part of a province. [Gr., tetra-, four, archēs, a ruler.]