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constant

constant

65 4.2
A value that does not change in math or science
  • noun
  • /ˈkɒnstənt/
  • Specialized
: constante
  • Scientists use various physical and mathematical constants to formulate their theories and equations.
  • fundamental constants
  • constants of nature
  • values of the constants

You're going to move this constant to the right side.

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Examples

  • For the Hubble constant, this shouldn't happen.

  • And then we have our C, which is our constant of integration.

  • These lines are lines of constant R, right?

  • So this thing actually is a constant because P is bigger than two.

  • There are a number of constants which have never been known to change in the history of science.

  • Most astronomers accept a value for Hubble's constant of about 50 km/s/Mpc.

    Academic text (1992)
  • Hafan was one of the few constants during a time of upheaval and adjustment.

    Academic text (2011)
  • In reality, though, economic mismanagement has remained a constant during Iran's imperial and revolutionary eras.

    Academic text (2008)
  • Valerie and Fernanda, Jazz's half-sisters, had been a constant in her life throughout her earliest years.

    Fiction book (1990)
  • In mathematics, Pi is a well-known constant that represents the ratio of a circle's circumference to its diameter.

Synonyms

constant quantity
vsconstant
  • Specialized
1 4.1

A number or amount that does not change

is the more general, shorter term for the same unchanging value
invariable
vsconstant
  • Specialized
1 7.9

A number or value that does not change in different situations

states an unchanging value without emphasising variation across conditions

Antonyms

variable
  • Specialized
170 4.2

A number or symbol that can have different values

Idioms

Something that stays the same while everything else changes

Compounds

cosmological constant
  • Specialized
5 9.3

A small number in Einstein's theory that makes the universe expand faster

time constant
  • Specialized
3 7.0

The time in a circuit for the voltage or current to change by about 63 percent

Planck's constant
  • Specialized
2 8.4

A number that relates the energy of a tiny particle of light to its frequency

Frequent changes to a computer program or system

2 7.5

A number that shows how strong the pull of gravity is between two objects

Hubble constant
  • Specialized
1 9.1

A number that shows how fast the universe is getting bigger

A habit of always saying you are unhappy about things

constant acceleration
  • Specialized
1 4.6

A steady change in an object's speed by the same amount in equal time periods

An ongoing need for praise and approval from other people

Boltzmann's constant
  • Specialized
1 9.2

A number used in physics that connects the energy of tiny particles to temperature

solar constant
  • Specialized
1 6.4

The amount of the sun's energy that reaches each square meter at the top of Earth's atmosphere

equilibrium constant
  • Specialized
1 5.5

A number showing the amount of products compared with reactants when a chemical reaction stops changing

1 6.0

A number that shows how much one value changes when another changes at the same rate

gas constant
  • Specialized
1 5.7

A fixed number used in the ideal gas law to connect energy, temperature and amount of gas

dissociation constant
  • Specialized
1 7.6

A number that shows how easily a substance breaks into charged parts in water

constant quantity
  • Specialized
1 4.1

A number or amount that does not change

1 7.2

A number that shows how strong gravity is between two objects depending on their mass and distance

A number that shows how strongly two objects with mass attract each other depending on their distance

Rydberg constant
  • Specialized
1 9.9

A number used to calculate the wavelengths of light from hydrogen atoms

Frequent lively posts and replies on Twitter

constant blather
  • Informal
7.0

Continuous trivial talk that says nothing important

9.9

A long period of slow thinking and low energy

9.9

Repeated silly behavior that annoys others

constant poontang
  • Offensive
9.9

A pattern of frequent casual sex with different people

7.0

A process in which the space a gas takes stays the same while pressure or temperature change

constant-width font
  • Specialized
3.4

A style of text where every letter takes the same amount of space

6.0

A rule that a pure material always contains the same elements in the same amounts by weight, for example water

Hubble's constant
  • Specialized
8.1

A number that shows how fast the universe is expanding now

ionization constant
  • Specialized
7.7

A number that shows how much a weak acid or base separates into ions in water

6.2

A number used in the ideal gas law to link energy, temperature, and amount of gas

How High

quantic
  • Specialized
1 9.9
cubic
  • Specialized
1 5.2
quadratic
  • Specialized
1 7.0
linear
  • Specialized
20 4.9
constant
  • Specialized
65 4.2

Surface Forms

constant singular
constants plural

Etymology

Constant comes from Latin constans, from con- 'together' and stare 'to stand', like the English word stand, so in math a constant is a value that 'stands' the same and does not change.