| OBSTETRIC | • obstetric adj. Of or relating to obstetrics (the care of women during and after pregnancy). • OBSTETRIC adj. relating to the care of women during pregnancy, also OBSTETRICAL. |
| TETRACIDS | • tetracids n. Plural of tetracid. • TETRACID n. a substance capable of neutralizing four molecules of a monobasic acid. |
| TETRADITE | • Tetradite n. A member of an occult group believing that the number four has mystical significance and that the Godhead… • TETRADITE n. a person who attaches mystic properties to the number four; a believer in a godhead of four persons. |
| TETRAGONS | • tetragons n. Plural of tetragon. • TETRAGON n. a four-sided polygon. |
| TETRAGRAM | • tetragram n. A group of four letters. • tetragram n. In the Taixuanjing, a sequence of four lines, each of which may be unbroken, broken once, or broken… • TETRAGRAM n. a word or inscription of four letters. |
| TETRALOGY | • tetralogy n. A set of four works of art that are connected, and that can be seen either as a single work or as four… • tetralogy n. (Medicine) A combination of four symptoms. • tetralogy n. (Medicine, colloquial) Tetralogy of Fallot. |
| TETRAMERS | • tetramers n. Plural of tetramer. • TETRAMER n. a polymer consisting of four identical isomers. |
| TETRAPLAS | • tetraplas n. Plural of tetrapla. • TETRAPLA n. (Greek) an edition of four parallel texts, esp. Origen's of the Old Testament. |
| TETRAPODS | • tetrapods n. Plural of tetrapod. • TETRAPOD n. a four-footed animal. |
| TETRAPODY | • tetrapody n. A set of four metrical feet. • TETRAPODY n. a set of four metrical feet. |
| TETRARCHS | • tetrarchs n. Plural of tetrarch. • TETRARCH n. a Roman governor of the fourth part of a province; hence, any subordinate or dependent prince. |
| TETRARCHY | • tetrarchy n. (Politics) A government where power is shared by four people, especially (historical) the Herodian tetrarchy… • tetrarchy n. (Geography) The land ruled by such a government, either together or separately. • TETRARCHY n. government by four people. |
| TETRAXONS | • tetraxons n. Plural of tetraxon. • TETRAXON n. a sponge spicule, also TETRACT. |
| TETRONALS | • TETRONAL n. a hypnotic and sedative drug, rarely used because of its toxicity. |
| TETROXIDE | • tetroxide n. (Chemistry) any oxide containing four oxygen atoms in each molecule. • TETROXIDE n. an oxide having four atoms of oxygen in the molecule; as, osmium tetroxide, also TETROXID. |
| TETROXIDS | • tetroxids n. Plural of tetroxid. • TETROXID n. an oxide having four atoms of oxygen in the molecule; as, osmium tetroxide, also TETROXIDE. |