Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of theory is as below...

Mechanical :: Mechanical (a.) Pertaining to, governed by, or in accordance with, mechanics, or the laws of motion; pertaining to the quantitative relations of force and matter, as distinguished from mental, vital, chemical, etc.; as, mechanical principles; a mechanical theory; mechanical deposits..

Heterogenist :: Heterogenist (n.) One who believes in the theory of spontaneous generation, or heterogenesis..

Theory :: Theory (n.) An exposition of the general or abstract principles of any science; as, the theory of music..

Fanciful :: Fanciful (a.) Conceived in the fancy; not consistent with facts or reason; abounding in ideal qualities or figures; as, a fanciful scheme; a fanciful theory..

Epigenesist :: Epigenesist (n.) One who believes in, or advocates the theory of, epigenesis..

Hypothesis :: Hypothesis (n.) A tentative theory or supposition provisionally adopted to explain certain facts, and to guide in the investigation of others; hence, frequently called a working hypothesis..

Humorism :: Humorism (n.) The theory founded on the influence which the humors were supposed to have in the production of disease; Galenism.

Helleborism :: Helleborism (n.) The practice or theory of using hellebore as a medicine.

Conceptualist :: Conceptualist (n.) One who maintains the theory of conceptualism.

Improvement :: Improvement (n.) The act of making profitable use or applicaton of anything, or the state of being profitably employed; a turning to good account; practical application, as of a doctrine, principle, or theory, stated in a discourse..

Kindergarten :: Kindergarten (n.) A school for young children, conducted on the theory that education should be begun by gratifying and cultivating the normal aptitude for exercise, play, observation, imitation, and construction; -- a name given by Friedrich Froebel, a German educator, who introduced this method of training, in rooms opening on a garden..

Practice :: Practice (n.) Actual performance; application of knowledge; -- opposed to theory.

Undulationist :: Undulationist (n.) One who advocates the undulatory theory of light.

Stimulism :: Stimulism (n.) The theory of medical practice which regarded life as dependent upon stimulation, or excitation, and disease as caused by excess or deficiency in the amount of stimulation..

Sound :: Sound (n.) The occasion of sound; the impulse or vibration which would occasion sound to a percipient if present with unimpaired; hence, the theory of vibrations in elastic media such cause sound; as, a treatise on sound..

Scheme :: Scheme (n.) A plan or theory something to be done; a design; a project; as, to form a scheme..

Physicist :: Physicist (n.) A believer in the theory that the fundamental phenomena of life are to be explained upon purely chemical and physical principles; -- opposed to vitalist.

Republicanism :: Republicanism (n.) A republican form or system of government; the principles or theory of republican government.

Plutonism :: Plutonism (n.) The theory, early advanced in geology, that the successive rocks of the earth's crust were formed by igneous fusion; -- opposed to the Neptunian theory..

Evolution :: Evolution (n.) That theory of generation which supposes the germ to preexist in the parent, and its parts to be developed, but not actually formed, by the procreative act; -- opposed to epigenesis..

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