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Definitions and Synonyms of constant | Another word for constant | What is constant?

Definition 1: a quantity that does not vary - [noun denoting cognition]

Synonyms for constant in the sense of this definition

(constant is a kind of ...) the concept that something has a magnitude and can be represented in mathematical expressions by a constant or a variable

(... is a kind of constant ) a constant in the equation of a curve that can be varied to yield a family of similar curves

Definition 2: a number representing a quantity assumed to have a fixed value in a specified mathematical context - [noun denoting quantity]

Samples where constant or its synonyms are used according to this definition

  • the velocity of light is a constant

(constant is a kind of ...) a concept of quantity involving zero and units

"every number has a unique position in the sequence"

(... is a kind of constant ) the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality

(... is a kind of constant ) the charge on an ion is equal to a constant charge e multiplied by an integer from 1 to 15

(... is a kind of constant ) (cosmology) the ratio of the speed of recession of a galaxy (due to the expansion of the universe) to its distance from the observer; the Hubble constant is not actually a constant, but is regarded as measuring the expansion rate today

(... is a kind of constant ) (physics) the universal constant relating force to mass and distance in Newton's law of gravitation

(... is a kind of constant ) (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole

(... is a kind of constant ) (chemistry) the ratio of concentrations when equilibrium is reached in a reversible reaction (when the rate of the forward reaction equals the rate of the reverse reaction)

(... is a kind of constant ) an arbitrary constant in the equations of general relativity theory

(... is a kind of constant ) a constant number that serves as a measure of some property or characteristic

(... is a kind of constant ) constant used in the calculation of the ideal gas constant

(... is a kind of constant ) the number of molecules in a mole of a substance (approximately 602,250,000,000,000,000,000,000)

(... is a kind of constant ) the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second

Definition 3: steadfast in purpose or devotion or affection - [adjective denoting all]

Samples where constant or its synonyms are used according to this definition

  • a man constant in adherence to his ideals
  • a constant lover
  • constant as the northern star

(constant is similar to ...) constant and unchanging

"the immutable laws of nature"

(constant is similar to ...) firm and dependable especially in loyalty

"a steadfast ally" "a staunch defender of free speech" "unswerving devotion" "unswerving allegiance"

(constant is similar to ...) unceasing

"unfailing loyalty" "unfailing good spirits" "unflagging courtesy"

(means also ...) not changeable or subject to change

"a fixed and unchangeable part of the germ plasm" "the unchangeable seasons" "one of the unchangeable facts of life"

(means also ...) steadfast in affection or allegiance

"years of faithful service" "faithful employees" "we do not doubt that England has a faithful patriot in the Lord Chancellor"

(means also ...) resistant to change of position or condition

"a stable ladder" "a stable peace" "a stable relationship" "stable prices"

(means also ...) not liable to or capable of change

"an invariable temperature" "an invariable rule" "his invariable courtesy"

(... are attributes of constant) the quality of being enduring and free from change or variation

"early mariners relied on the constancy of the trade winds"

Definition 4: uninterrupted in time and indefinitely long continuing - [adjective satellite denoting all]

Samples where constant or its synonyms are used according to this definition

  • the ceaseless thunder of surf
  • in constant pain
  • night and day we live with the incessant noise of the city
  • the never-ending search for happiness
  • the perpetual struggle to maintain standards in a democracy
  • man's unceasing warfare with drought and isolation
  • unremitting demands of hunger

Synonyms for constant in the sense of this definition

(constant is similar to ...) continuing in time or space without interruption

"a continuous rearrangement of electrons in the solar atoms results in the emission of light" "a continuous bout of illness lasting six months" "lived in continuous fear" "a continuous row of warehouses" "a continuous line has no gaps or breaks in it" "moving midweek holidays to the nearest Monday or Friday allows uninterrupted work weeks"

Definition 5: unvarying in nature - [adjective satellite denoting all]

Samples where constant or its synonyms are used according to this definition

  • maintained a constant temperature
  • principles of unvarying validity

Synonyms for constant in the sense of this definition

(constant is similar to ...) not liable to or capable of change

"an invariable temperature" "an invariable rule" "his invariable courtesy"

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