Definition of theory

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Theory (n.) The philosophical explanation of phenomena, either physical or moral; as, Lavoisier's theory of combustion; Adam Smith's theory of moral sentiments..

Lern More About Theory

Immaterialism :: Immaterialism (n.) The doctrine that external bodies may be reduced to mind and ideas in a mind; any doctrine opposed to materialism or phenomenalism, esp. a system that maintains the immateriality of the soul; idealism; esp., Bishop Berkeley's theory of idealism..
Theoric :: Theoric (n.) Speculation; theory.
Esthetics :: Esthetics (n.) The theory or philosophy of taste; the science of the beautiful in nature and art; esp. that which treats of the expression and embodiment of beauty by art.
Communalism :: Communalism (n.) A French theory of government which holds that commune should be a kind of independent state, and the national government a confederation of such states, having only limited powers. It is advocated by advanced French republicans; but it should not be confounded with communism..
Antiphlogistian :: Antiphlogistian (n.) An opposer of the theory of phlogiston.
Isobar :: Isobar (n.) The quality or state of being equal in weight, especially in atmospheric pressure. Also, the theory, method, or application of isobaric science..
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..
Theory :: Theory (n.) A doctrine, or scheme of things, which terminates in speculation or contemplation, without a view to practice; hypothesis; speculation..
Underlie :: Underlie (v. t.) To be at the basis of; to form the foundation of; to support; as, a doctrine underlying a theory..
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..
Republicanism :: Republicanism (n.) A republican form or system of government; the principles or theory of republican government.
Gastraea :: Gastraea (n.) A primeval larval form; a double-walled sac from which, according to the hypothesis of Haeckel, man and all other animals, that in the first stages of their individual evolution pass through a two-layered structural stage, or gastrula form, must have descended. This idea constitutes the Gastraea theory of Haeckel. See Gastrula..
Chemistry :: Chemistry (n.) An application of chemical theory and method to the consideration of some particular subject; as, the chemistry of iron; the chemistry of indigo..
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..
Phenomenalism :: Phenomenalism (n.) That theory which limits positive or scientific knowledge to phenomena only, whether material or spiritual..
#NAME? :: -logy () A combining form denoting a discourse, treatise, doctrine, theory, science; as, theology, geology, biology, mineralogy..
Electro-vitalism :: Electro-vitalism (n.) The theory that the functions of living organisms are dependent upon electricity or a kindred force.
Transmutation :: Transmutation (n.) The change of one species into another, which is assumed to take place in any development theory of life; transformism..
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..
Scheme :: Scheme (n.) A plan or theory something to be done; a design; a project; as, to form a scheme..
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