(chemistry) any theory in which all matter is composed of tiny discrete finite indivisible indestructible particles; "the ancient Greek philosophers Democritus and Epicurus held atomic theories of the universe"
(psychology) a theory that reduces all mental phenomena to simple elements (sensations and feelings) that form complex ideas by association
to prepare verbally, either for written or spoken delivery; "prepare a report"; "prepare a speech"
lead up to and soften by sounding the dissonant note in it as a consonant note in the preceding chord; "prepare the discord in bar 139"
prepare (someone) for a future role or function; "He is grooming his son to become his successor"; "The prince was prepared to become King one day"; "They trained him to be a warrior"
the distinct personality of an individual regarded as a persisting entity; "you can lose your identity when you join the army"
exact sameness; "they shared an identity of interests"
the individual characteristics by which a thing or person is recognized or known; "geneticists only recently discovered the identity of the gene that causes it"; "it was too dark to determine his identity"; "she guessed the identity of his lover"
an operator that leaves unchanged the element on which it operates; "the identity under numerical multiplication is 1"