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WordReference Random House Learner's Dictionary of American English © 2024con•stant /ˈkɑnstənt/USA pronunciation adj. - not changing;
staying the same: Driving at a constant speed saves gas. - continuing without pause;
not stopping:constant noise. - faithful, as in love, devotion, or loyalty:a constant friend during all the turmoil.
n. [countable] - something that does not change or vary:The speed of light was postulated as a constant.
con•stant•ly, adv. See -stan-. WordReference Random House Unabridged Dictionary of American English © 2024con•stant (kon′stənt),USA pronunciation adj. - not changing or varying;
uniform;
regular;
invariable:All conditions during the three experiments were constant. - continuing without pause or letup;
unceasing:constant noise. - regularly recurrent;
continual;
persistent:He found it impossible to work with constant interruption. - faithful;
unswerving in love, devotion, etc.:a constant lover. - steadfast;
firm in mind or purpose;
resolute. - [Obs.]certain;
confident.
n. - something that does not or cannot change or vary.
- Physicsa number expressing a property, quantity, or relation that remains unchanged under specified conditions.
- Mathematicsa quantity assumed to be unchanged throughout a given discussion.
- Latin constant- (stem of constāns, present participle of constāre to stand firm), equivalent. to con- con- + stā- stand + -nt- present participle suffix
- Middle English 1350–1400
- 1.See corresponding entry in Unabridged unchanging, immutable, permanent.
- 2.See corresponding entry in Unabridged perpetual, unremitting, uninterrupted.
- 3.See corresponding entry in Unabridged incessant, ceaseless.
- 4.See corresponding entry in Unabridged loyal, staunch, true. See faithful.
- 5.See corresponding entry in Unabridged steady, unwavering, unswerving.
- 1.See corresponding entry in Unabridged changeable.
- 2.See corresponding entry in Unabridged fitful.
- 3.See corresponding entry in Unabridged sporadic.
- 4.See corresponding entry in Unabridged unreliable.
- 5.See corresponding entry in Unabridged wavering.
Con•stant (kôn stän′),USA pronunciation n. Paul Hen•ri Ben•ja•min Bal•luat (pôl än rē′ ban zha man′ ba lwa′).USA pronunciation See Estournelles de Constant, Paul. Jean Jo•seph Ben•ja•min (zhän zhô zef′ ban zha man′),USA pronunciation 1845–1902, French painter.
Collins Concise English Dictionary © HarperCollins Publishers:: constant /ˈkɒnstənt/ adj - fixed and invariable; unchanging
- continual or continuous; incessant: constant interruptions
- resolute in mind, purpose, or affection; loyal
n - something that is permanent or unchanging
- a specific quantity that is always invariable: the velocity of light is a constant
- a symbol representing an unspecified number that remains invariable throughout a particular series of operations
- a theoretical or experimental quantity or property that is considered invariable throughout a particular series of calculations or experiments
Etymology: 14th Century: from Old French, from Latin constāns standing firm, from constāre to be steadfast, from stāre to standˈconstantly adv lam•bert (lam′bərt),USA pronunciation n. [Optics.]- Opticsthe centimeter-gram-second unit of luminance or brightness, equivalent to 0.32 candles per square centimeter, and equal to the brightness of a perfectly diffusing surface emitting or reflecting one lumen per square centimeter. Abbr.: L
- named after J. H. Lambert 1910–15
Con•stant (kon′stənt),USA pronunciation 1905–51, English composer and conductor.Jo•hann Hein•rich (yō′hän hīn′rikh),USA pronunciation 1728–77, German scientist and mathematician.- a male given name: from Germanic words meaning "land'' and "bright.''
Collins Concise English Dictionary © HarperCollins Publishers:: Constant /French: kɔ̃stɑ̃/ n - Benjamin (bɛ̃ʒamɛ̃). real name Henri Benjamin Constant de Rebecque. 1767–1830, French writer and politician: author of the psychological novel Adolphe (1816)
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