noun pl. formulas or formulae
- a fixed form of words, esp. one that has lost its original meaning or force and is now used only as a conventional or ceremonial expression: “Very truly yours” is a formula used in letters
- a rule or method for doing something, esp. when conventional and used or repeated without thought: a formula for musical comedies
- an exact statement of religious faith or doctrine
- directions for preparing a medicine, a paint, a baby's food, etc.
- something prepared from such directions; often specif., a milk preparation for feeding a baby
- a set of algebraic symbols expressing a mathematical fact, principle, rule, etc.: A = πr is the formula for determining the area of a circle
- Chem. an expression of the composition of a compound (or a radical, etc.) by a combination of symbols and figures to show the constituents
L, dim. of forma, form
designating or of any of various classes of racing car or motorcycle specially designed to conform to a particular set of specifications governing size, weight, engine displacement, etc.