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Oxford Dictionary
constant
- IPA[ˈkɒnst(ə)nt]
英式
- adj.
  
  occurring continuously over a period of time；remaining the same over a period of time
- n.
  
  a situation that does not change；a quantity or parameter that does not change its value whatever the value of the variables, under a given set of conditions.
- noun: constant, plural noun: constants
- 釋義
- 相關詞
adj.
形容詞
1. occurring continuously over a period of time the constant background noise of the city 同義詞 continual, continuous, persistent, sustained, abiding, ... 更多round-the-clock, ceaseless, unceasing, perpetual, incessant, never-ending, everlasting, eternal, endless, unending, unabating, non-stop, perennial, unbroken, uninterrupted, unrelieved, interminable, unremitting, relentless, unrelenting, without respite, literarysempiternal, steadfast, steady, resolute, determined, persevering, tenacious, dogged, unwavering, unflagging, unshaken反義詞 inconstant, fitful
▪ remaining the same over a period of time these discs rotate at a constant speed 同義詞 consistent, regular, stable, steady, fixed, ... 更多uniform, even, level, invariable, unvarying, unchanging, changeless, undeviating, unfluctuating, immutable反義詞 inconstant, variable
▪ (of a person) unchangingly faithful and dependable a constant friend 同義詞 faithful, loyal, devoted, true, fast, ... 更多firm, unswerving, unwavering, steadfast, staunch, stalwart, dependable, trustworthy, trusty, reliable, dedicated, committed, bosom, boon反義詞 inconstant, fickle
n.
名詞
1. a situation that does not change the condition of struggle remained a constant
▪ a quantity or parameter that does not change its value whatever the value of the variables, under a given set of conditions.
▪ a number expressing a relation or property which remains the same in all circumstances, or for the same substance under the same conditions.
gravitational constant
n.
the constant in Newton's law of gravitation relating gravity to the masses and separation ...
Oxford Dictionary

Michaelis constant
n.
the concentration of a given enzyme that catalyzes the associated reaction at half the maximum rate.
Oxford American Dictionary

dissociation constant
n.
a quantity expressing the extent to which a particular substance in solution is dissociated ...
Oxford Dictionary

gas constant
n.
the constant of proportionality in the gas equation. It is equal to 8.314 joule kelvin−1 mole−1.
Oxford American Dictionary

time constant
n.
a time which represents the speed with which a particular system can respond to change, ...
Oxford Dictionary

gravitational constant
n.
the constant in Newton's law of gravitation relating gravity to the masses and separation ...
Oxford American Dictionary

rate constant
n.
a coefficient of proportionality relating the rate of a chemical reaction at a given ...
Oxford American Dictionary

dissociation constant
n.
a quantity expressing the extent to which a particular substance in solution is dissociated ...
Oxford American Dictionary
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constant
IPA[ˈkänst(ə)nt]
美式
adj.
occurring continuously over a period of time: the pain is constant
n.
a situation or state of affairs that does not change: the condition of struggle remained a constant
Oxford American Dictionary