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...

Darwinian :: Darwinian (a.) Pertaining to Darwin; as, the Darwinian theory, a theory of the manner and cause of the supposed development of living things from certain original forms or elements..

Philosophy :: Philosophy (n.) A particular philosophical system or theory; the hypothesis by which particular phenomena are explained.

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

Naturist :: Naturist (n.) One who believes in, or conforms to, the theory of naturism..

Monodynamism :: Monodynamism (n.) The theory that the various forms of activity in nature are manifestations of the same force.

Syngnathi :: Syngenesis (n.) A theory of generation in which each germ is supposed to contain the germs of all subsequent generations; -- the opposite of epigenesis.

Rationalist :: Rationalist (n.) One who accepts rationalism as a theory or system; also, disparagingly, a false reasoner. See Citation under Reasonist..

Conceptualism :: Conceptualism (n.) A theory, intermediate between realism and nominalism, that the mind has the power of forming for itself general conceptions of individual or single objects..

Speculation :: Speculation (n.) A conclusion to which the mind comes by speculating; mere theory; view; notion; conjecture.

Aretaics :: Aretaics (n.) The ethical theory which excludes all relations between virtue and happiness; the science of virtue; -- contrasted with eudemonics.

Animalculist :: Animalculist (n.) A believer in the theory of animalculism.

Isopathy :: Isopathy (n.) The theory of curing a diseased organ by eating the analogous organ of a healthy animal.

Atomist :: Atomist (n.) One who holds to the atomic philosophy or theory.

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

Synergist :: Synergism (n.) The doctrine or theory, attributed to Melanchthon, that in the regeneration of a human soul there is a cooperation, or joint agency, on the part both of God and of man..

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

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

Plutonist :: Plutonist (n.) One who adopts the geological theory of igneous fusion; a Plutonian. See Plutonism.

Pantisocratist :: Pantisocratist (n.) One who favors or supports the theory of a pantisocracy.

Associational :: Associational (a.) Pertaining to the theory held by the associationists.

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