| theophylline aminoisobutanol | <drug> A diuretic and bronchodilator. Synonym: theophylline aminoisobutanol. (05 Mar 2000) |
|---|---|
| theophylline calcium salicylate | A mixture of calcium theophylline and sodium salicylate in molecular proportion; has the same actions and uses as theophylline. (05 Mar 2000) |
| theophylline ethanolamine | Theophylline monoethanolamine, with the same actions and uses as theophylline. (05 Mar 2000) |
| theophylline ethylenediamine | <drug> An inhibitor of cAMP phosphodiesterase. (18 Nov 1997) |
| theophylline isopropanolamine | Has the same actions and uses as aminophylline, but a more rapid onset and a longer duration of action. (05 Mar 2000) |
| theophylline oxidase | <enzyme> Catalyses the oxidation of theophylline to 1,3-dimethyluric acid in the presence of ferricytochrome c Registry number: EC 1.5.99.- (26 Jun 1999) |
| theophylline sodium acetate | A mixture of theophylline sodium and sodium acetate, with 60% of theophylline; has the same uses as theophylline. (05 Mar 2000) |
| theophylline sodium glycinate | Equilibrium mixture containing theophylline sodium and glycine in approximately molecular proportions, buffered with an additional mole of glycine; similar in action and uses to aminophylline but more stable in air, and less irritating to the gastric mucosa. (05 Mar 2000) |
| theopneustic | Given by the inspiration of the Spirit of God. Origin: Gr. Inspired of God; God + to blow, to breathe. Source: Websters Dictionary (01 Mar 1998) |
| theorem | 1. That which is considered and established as a principle; hence, sometimes, a rule. "Not theories, but theorems, the intelligible products of contemplation, intellectual objects in the mind, and of and for the mind exclusively." (Coleridge) "By the theorems, Which your polite and terser gallants practice, I re-refine the court, and civilize Their barbarous natures." (Massinger) 2. <mathematics> A statement of a principle to be demonstrated. A theorem is something to be proved, and is thus distinguished from a problem, which is something to be solved. In analysis, the term is sometimes applied to a rule, especially a rule or statement of relations expressed in a formula or by symbols; as, the binomial theorem; Taylor's theorem. See the Note under Proposition. Binomial theorem. <mathematics> A theorem which extends to any quantity without restriction. Origin: L. Theorema, Gr. A sight, speculation, theory, theorem, fr. To look at, a spectator: cf. F. Theoreme. See Theory. Source: Websters Dictionary (01 Mar 1998) |
| theoretical | Of, pertaining to or consisting in theory, not practical (distinguished from applied). (18 Nov 1997) |
| theory | In science, an explanation for some phenomenon which is based on observation, experimentation, and reasoning. In popular use, a theory is often assumed to imply mere speculation, but in science, something is not called a theory until it has been confirmed over the course of many independent experiments. Theories are more certain than hypotheses, but less certain than laws. (09 Oct 1997) |
| theory of electrolytic dissociation | The theory of electrolytic dissociation (1887) that became the basis of our modern understanding of electrolytes: in an electrically conductive solution (e.g., acid, base, or salt), free ions are present before electrolysis, and the proportion of molecules dissociated into ions can be calculated from measurements of electrical conductivity as well as of osmotic pressure. Synonym: Arrhenius law. (05 Mar 2000) |
| theory of medicine | The science, as distinguished from the art, or practice, of medicine. (05 Mar 2000) |
| theosophy | Any system of philosophy or mysticism which proposes to attain intercourse with God and superior spirits, and consequent superhuman knowledge, by physical processes, as by the theurgic operations of some ancient Platonists, or by the chemical processes of the German fire philosophers; also, a direct, as distinguished from a revealed, knowledge of God, supposed to be attained by extraordinary illumination; especially, a direct insight into the processes of the divine mind, and the interior relations of the divine nature. Origin: Gr. Knowledge of things divine, fr. Wise in the things of God; God + wise: cf. F. Theosophie. Source: Websters Dictionary (01 Mar 1998) |