(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
characterized by the exactness or precision of mathematics; "mathematical precision"
statistically possible though highly improbable; "have a mathematical chance of making the playoffs"
beyond question; "a mathematical certainty"
of or pertaining to or of the nature of mathematics; "a mathematical textbook"; "slide rules and other mathematical instruments"; "a mathematical solution to a problem"; "mathematical proof"
any activity that is performed in an especially solemn elaborate or formal way; "the ceremony of smelling the cork and tasting the wine"; "he makes a ceremony of addressing his golf ball"; "he disposed of it without ceremony"
the proper or conventional behavior on some solemn occasion; "an inaugural ceremony"
a formal event performed on a special occasion; "a ceremony commemorating Pearl Harbor"
any personal belief about how to live or how to deal with a situation; "self-indulgence was his only philosophy"; "my father's philosophy of child-rearing was to let mother do it"
the rational investigation of questions about existence and knowledge and ethics