noun Any mathematical rule expressed symbolically.
x=−b±b2−4ac2a is a formula for finding the roots of the quadratic equation ax + bx + c = 0.
noun A symbolic expression of the structure of a compound.
H2O is the formula for water.
noun A plan or method for dealing with a problem or for achieving a result.
The company's winning formula includes excellent service and quality products.
noun A formulation; a prescription; a mixture or solution made in a prescribed manner; the identity and quantities of ingredients of such a mixture.
The formula of the rocket fuel has not been revealed.
noun A fixed phrase or set of words intended to be interpreted non-literally, typically used attitudinally or as part of convention; a formulation.
Avoid the typical epistolic formalae, such as "Kind regards".
noun (Can we verify this sense?) A formal statement of doctrine.
noun Ellipsis of infant formula, drink given to babies to substitute for mother's milk.
They tried switching formulas, and it seemed to work: the baby seemed more content while feeding.
noun A syntactic expression of a proposition, built up from quantifiers, logical connectives, variables, relation and operation symbols, and, depending on the type of logic, possibly other operators such as modal, temporal, deontic or epistemic ones.