constant
English
[edit]Etymology
[edit]From Middle English constant, from Old French constant, from Latin constantem, accusative of constans, from constare (“to stand firm”). Displaced native Old English singal.
Pronunciation
[edit]Adjective
[edit]constant (comparative more constant, superlative most constant)
- Unchanged through time or space; permanent.
- Consistently recurring over time; persistent.
- Synonyms: see Thesaurus:continuous
- 2013 November 16, Schumpeter, “The mindfulness business”, in The Economist, volume 409, number 8862:
- The constant pinging of electronic devices is driving many people to the end of their tether. Electronic devices not only overload the senses and invade leisure time. They feed on themselves: the more people tweet the more they are rewarded with followers and retweets.
- Steady in purpose, action, feeling, etc.
- c. 1580 (date written), Philippe Sidnei [i.e., Philip Sidney], “[The Second Booke] Chapter 3”, in [Fulke Greville; Matthew Gwinne; John Florio], editors, The Countesse of Pembrokes Arcadia [The New Arcadia], London: […] [John Windet] for William Ponsonbie, published 1590, →OCLC, folio 162, recto:
- Both loving one fair maid, they yet remained constant friends.
- c. 1599–1602 (date written), William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act V, scene ii]:
- I am constant to my purposes.
- 1700, [John] Dryden, “Theodore and Honoria, from Boccace”, in Fables Ancient and Modern; […], London: […] Jacob Tonson, […], →OCLC:
- His gifts, his constant courtship, nothing gained.
- Firm; solid; not fluid.
- 1659 December 30 (date written), Robert Boyle, New Experiments Physico-Mechanicall, Touching the Spring of the Air, and Its Effects, (Made, for the Most Part, in a New Pneumatical Engine) […], Oxford, Oxfordshire: […] H[enry] Hall, printer to the University, for Tho[mas] Robinson, published 1660, →OCLC:
- If […] you mix them, you may turn these two fluid liquors into a constant body.
- (obsolete) Consistent; logical.
- c. 1601–1602 (date written), William Shakespeare, “Twelfe Night, or What You Will”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act IV, scene ii]:
- I am no more mad than you are: make the trial of it with any constant question.
- (computing, complexity theory) Bounded above by a constant.
- constant time constant space
Synonyms
[edit]- (unchanged through time or space): nonchanging, unaltering, unvarying; see also Thesaurus:changeless
Derived terms
[edit]Translations
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- The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
Noun
[edit]constant (plural constants)
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- That which is permanent or invariable.
- (algebra) A quantity that remains at a fixed value throughout a given discussion.
- 2015, Emanuel Carneiro, Damiano Foschi, Diogo Oliveira e Silva, Christoph Thiele, “A sharp trilinear inequality related to Fourier restriction on the circle”, in arXiv[1]:
- We also establish that constants are local extremizers of the Tomas-Stein adjoint restriction inequality as well as of another inequality appearing in the program..
- (sciences) Any property of an experiment, determined numerically, that does not change under given circumstances.
- 2015, Lenny H.E. Winkel et al., “Selenium Cycling Across Soil-Plant-Atmosphere Interfaces: A Critical Review”, in Nutrients[2], volume 7, :
- Based on their acid dissociation constants (pKa), seleneous[sic] acid (H2SeO3) and selenic acid (H2SeO4) are anionic under common environmental conditions [48], e.g., as selenite (SeO32−) and selenate (SeO42−).
- (computing) An identifier that is bound to an invariant value; a fixed value given a name to aid in readability of source code.
Derived terms
[edit]- absolute constant
- acid dissociation constant
- Apéry's constant
- Archimedes' constant
- Avogadro constant
- Avogadro's constant
- Boltzmann constant
- Boltzmann's constant
- Brun's constant
- Catalan's constant
- Chaitin's constant
- Champernowne constant
- constant function
- constant of integration
- constant problem
- Conway's constant
- Copeland-Erdős constant
- cosmological constant
- Coulomb's constant
- de Bruijn-Newman constant
- decay constant
- dielectric constant
- Dirac constant
- Dirac's constant
- Einstein constant
- Einstein's constant
- equilibrium constant
- Euler-Mascheroni constant
- Feigenbaum constant
- fine-structure constant
- fine structure constant
- Fransén-Robinson constant
- fundamental constant
- gas constant
- Gelfond's constant
- gravitational constant
- Henry's law constant
- Hubble constant
- Hubble's constant
- Landau-Ramanujan constant
- lattice constant
- Legendre's constant
- logical constant
- Ludolph's constant
- Madelung constant
- magic constant
- Napier's constant
- physical constant
- Planck constant
- Planck's constant
- propositional constant
- Ramanujan's constant
- rate constant
- reaction rate constant
- Rydberg constant
- screening constant
- separation constant
- shielding constant
- sofa constant
- solar constant
- Sommerfeld's constant
- spring constant
- Stefan-Boltzmann constant
- Stieltjes constant
- symbolic constant
- time constant
Translations
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- The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
Related terms
[edit]- constantly (adv)
- constancy (n)
See also
[edit]- (computing) literal
Catalan
[edit]Etymology 1
[edit]Borrowed from Latin cōnstantem.
Pronunciation
[edit]Adjective
[edit]constant m or f (masculine and feminine plural constants)
- constant
- Antonym: inconstant
Derived terms
[edit]Related terms
[edit]Noun
[edit]constant f (plural constants)
Further reading
[edit]- “constant” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.
- “constant”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2024
- “constant” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
- “constant” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.
Etymology 2
[edit]Verb
[edit]constant
Dutch
[edit]Etymology
[edit]Borrowed from Middle French constant, from Latin cōnstāns.
Pronunciation
[edit]Adjective
[edit]constant (comparative constanter, superlative constantst)
- constant, invariable
- constant, continuous, unceasing
Declension
[edit]Declension of constant | ||||
---|---|---|---|---|
uninflected | constant | |||
inflected | constante | |||
comparative | constanter | |||
positive | comparative | superlative | ||
predicative/adverbial | constant | constanter | het constantst het constantste | |
indefinite | m./f. sing. | constante | constantere | constantste |
n. sing. | constant | constanter | constantste | |
plural | constante | constantere | constantste | |
definite | constante | constantere | constantste | |
partitive | constants | constanters | — |
Derived terms
[edit]Descendants
[edit]- → Indonesian: konstan
French
[edit]Etymology
[edit]From Latin cōnstantem.
Pronunciation
[edit]Adjective
[edit]constant (feminine constante, masculine plural constants, feminine plural constantes)
Derived terms
[edit]Related terms
[edit]Further reading
[edit]- “constant”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.
Latin
[edit]Verb
[edit]cōnstant
Romanian
[edit]Etymology
[edit]Borrowed from French constant, from Latin constans.
Adjective
[edit]constant m or n (feminine singular constantă, masculine plural constanți, feminine and neuter plural constante)
Declension
[edit]singular | plural | ||||||
---|---|---|---|---|---|---|---|
masculine | neuter | feminine | masculine | neuter | feminine | ||
nominative/ accusative |
indefinite | constant | constantă | constanți | constante | ||
definite | constantul | constanta | constanții | constantele | |||
genitive/ dative |
indefinite | constant | constante | constanți | constante | ||
definite | constantului | constantei | constanților | constantelor |
- English terms inherited from Middle English
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- Rhymes:Catalan/ant
- Rhymes:Catalan/ant/2 syllables
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- Dutch terms borrowed from Middle French
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- Rhymes:Dutch/ɑnt
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