n. (pl. formulas or (esp. in senses 1, 2) formulae)
1. Chem. a set of chemical symbols showing the constituents of a substance and their relative proportions.
2 Math. a mathematical rule expressed in symbols.
3 a a fixed form of words, esp. one used on social or ceremonial occasions. b a rule unintelligently or slavishly followed; an established or conventional usage. c a form of words embodying or enabling agreement, resolution of a dispute, etc.
4 a a list of ingredients; a recipe. b US an infant's food made up from a recipe.
5 a classification of racing car, esp. by the engine capacity.
Derivatives:
formulaic adj. formularize v.tr. (also -ise). formulize v.tr. (also -ise).
Etymology: L, dimin. of forma FORM