- formula
- formula [fôr′myo͞o lə, fôr′myələ]n.pl. formulas or formulae [fôr′myo͞olə́΄, fôr′myo͞olī΄, fôr′myəlē΄, fôr′myəlī΄] [L, dim. of forma, FORM]1. 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]2. a rule or method for doing something, esp. when conventional and used or repeated without thought [a formula for musical comedies]3. an exact statement of religious faith or doctrine4.a) directions for preparing a medicine, a paint, a baby's food, etc.b) something prepared from such directions; often specif., a milk preparation for feeding a baby5. a set of algebraic symbols expressing a mathematical fact, principle, rule, etc. [A = πr2 is the formula for determining the area of a circle]6. Chem. an expression of the composition of a compound (or a radical, etc.) by a combination of symbols and figures to show the constituents: see EMPIRICAL FORMULA, MOLECULAR FORMULA, STRUCTURAL FORMULAadj.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.
English World dictionary. V. Neufeldt. 2014.