formulae

(noun) a group of symbols that make a mathematical statement. Synonyms: formula, expression.

(noun) directions for making something. Synonyms: recipe, formula.

(noun) a conventionalized statement expressing some fundamental principle. Synonyms: formula.

(noun) a representation of a substance using symbols for its constituent elements. Synonyms: formula, chemical formula.

(noun) something regarded as a normative example. Synonyms: convention, normal, pattern, rule, formula. Examples: "The convention of not naming the main character." "Violence is the rule not the exception." "His formula for impressing visitors."

(noun) a liquid food for infants. Synonyms: formula.

(noun) (mathematics) a standard procedure for solving a class of mathematical problems. Synonyms: rule, formula. Examples: "He determined the upper bound with descartes' rule of signs." "He gave us a general formula for attacking polynomials."