- a set form of words, as for stating or declaring something definitely or authoritatively, for indicating procedure to be followed, or for prescribed use on some ceremonial occasion.
- any fixed or conventional method for doing something: His mystery stories were written according to a popular formula.
- a rule or principle, frequently expressed in algebraic symbols.
- such a symbolic expression.
- Chemistry. an expression of the constituents of a compound by symbols and figures.Compare empirical formula, molecular formula, structural formula.
- a recipe or prescription: a new formula for currant wine.
- a special nutritive mixture, especially of milk, sugar, and water, in prescribed proportions for feeding a baby.
- a formal statement of religious doctrine.
- (initial capital letter) a set of specifications as to weight, engine displacement, fuel capacity, etc., for defining a class of racing cars (usually followed by a limiting numerical designation): Some races are open to Formula One cars.
Origin of formula
Examples from the Web for formulae
Formulae which place the salts in separate solutions are a mistake.Bromide Printing and Enlarging
John A. Tennant
Its spirit if not its formulae is abundantly present in our modern world.First and Last Things
H. G. Wells
He does not; but, none the less, the three formulae for the three situations are there.Essays in Experimental Logic
There is a curious reciprocity in formulae such as we have just given.
We may compare also the formulae used in greetings to strangers.The Heroic Age
H. Munro Chadwick
- an established form or set of words, as used in religious ceremonies, legal proceedings, etc
- maths physics a general relationship, principle, or rule stated, often as an equation, in the form of symbols
- chem a representation of molecules, radicals, ions, etc, expressed in the symbols of the atoms of their constituent elementsSee molecular formula, empirical formula, structural formula
- a method, pattern, or rule for doing or producing something, often one proved to be successful
- (as modifier)formula fiction
- a prescription for making up a medicine, baby's food, etc
- a substance prepared according to such a prescription
- motor racing the specific category in which a particular type of car competes, judged according to engine size, weight, and fuel capacity
Word Origin and History for formulae
plural of formula.
1630s, "words used in a ceremony or ritual," from Latin formula "form, draft, contract, regulation; rule, method, formula," literally "small form," diminutive of forma "form" (see form (n.)).
Modern sense is colored by Carlyle's use (1837) of the word for "rule slavishly followed without understanding" [OED].
Men who try to speak what they believe, are naked men fighting men quilted sevenfold in formulae. [Charles Kingsley, "Letters," 1861]
Mathematical use is from 1796; use in chemistry is from c.1846.
- A symbolic representation of the chemical composition or of the chemical composition and structure of a compound.
- The chemical compound so represented.
- A prescription of ingredients in fixed proportion; a recipe.
- A liquid food for infants, containing most of the nutrients in human milk.
- A mathematical statement, especially an equation, of a fact, rule, principle, or other logical relation.
- A set of symbols showing the composition of a chemical compound. A formula lists the elements contained within it and indicates the number of atoms of each element with a subscript numeral if the number is more than 1. For example, H2O is the formula for water, where H2 indicates two atoms of hydrogen and O indicates one atom of oxygen.
- A set of symbols expressing a mathematical rule or principle. For example, the formula for the area of a rectangle is a = lw, where a is the area, l the length, and w the width.