American English

How to pronounce formulae

nounB1Common word
FORmyuhlay

/ˈfɔɹ.mjə.ˌleɪ/

3 syllables · Stress the first syllable.

Related entry: formula

A set of letters, numbers, or symbols that shows how to calculate something or describes a relationship in mathematics or science.

Practice out loud

Meanings & examples

noun

A set of letters, numbers, or symbols that shows how to calculate something or describes a relationship in mathematics or science.

The area formula is πr².

Use this formula to calculate the interest.

Common phrases & grammar

mathematical formula · scientific formula · quadratic formula · plug numbers into a formula

use + a/the + formula + to + verb

the formula for + noun/gerund

noun

A fixed method or combination of ideas that is expected to produce a particular result.

There is no magic formula for happiness.

The team found a winning formula.

Common phrases & grammar

magic formula · winning formula · formula for success · proven formula

a formula for + noun/gerund

find/use + a/the + formula

noun

Powdered or liquid food, usually made from milk or soy, for babies who are not being fed breast milk.

Mix the formula with clean water.

The baby is doing well on soy formula.

Common phrases & grammar

baby formula · infant formula · powdered formula · soy formula

mix the formula with + noun

feed + person + formula

Useful expressions

magic formula

A simple solution that seems to solve a difficult problem.

There is no magic formula for getting rich.

winning formula

A combination of ideas or actions that leads to success.

Good food and friendly service are a winning formula.

formula for success

A method believed to lead to success.

Hard work is not the only formula for success.

Related words & forms

In everyday American English, formulas is the usual plural. Formulae is also used, especially in technical writing.