#1 formula n. [expression] a group of symbols that make a mathematical statement. wn
#2 formula n. [recipe] directions for making something. wn
#3 formula n. a conventionalized statement expressing some fundamental principle. wn
#4 formula n. [chemical formula] a representation of a substance using symbols for its constituent elements. wn
#5 formula n. [convention, normal, pattern, rule] something regarded as a normative example; "the convention of not naming the main character"; "violence is the rule not the exception"; "his formula for impressing visitors". wn
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