incommensurable

incommensurable
1. adjective /ɪnkəˈmɛnsjʊəɹəbəl/
a) That cannot be measured as an integer or fraction; irrational.
b) Not able to be measured by the same standards as another term in the context; see measurement; contrast with unmeasurable or immeasurable, each of which means not able to be measured at all, the former more generally, the latter generally due to some infinite quality of the thing being described
2. noun /ɪnkəˈmɛnsjʊəɹəbəl/
An incommensurable value or quantity; an irrational number.

Unfortunately for Pythagoras, his theorem led at once to the discovery of incommensurables, which appeared to disprove his whole philosophy.


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  • incommensurable — [ ɛ̃kɔmɑ̃syrabl ] adj. • 1361, rare av. XVIIIe; bas lat. incommensurabilis 1 ♦ Math. Se dit de grandeurs qui n ont pas de mesure commune, dont le rapport ne peut donner de nombre entier ni fractionnaire. ⇒ irrationnel. La racine carrée de 2 est… …   Encyclopédie Universelle

  • Incommensurable — In com*men su*ra*ble, a. [Pref. in not + commensurable: cf. F. incommensurable.] Not commensurable; having no common measure or standard of comparison; as, quantities are incommensurable when no third quantity can be found that is an aliquot part …   The Collaborative International Dictionary of English

  • incommensurable — [in΄kə men′shoor ə bəl, in΄kə men′sərə bəl] adj. [LL incommensurabilis: see IN 2 & COMMENSURABLE] 1. that cannot be measured or compared by the same standard or measure; without a common standard of comparison 2. not worthy of comparison [a… …   English World dictionary

  • incommensurable — (adj.) 1550s, from M.Fr. incommensurable or directly from M.L. incommensurabilis, from in not, opposite of, without (see IN (Cf. in ) (1)) + L.L. commensurabilis, from L. com with + mensurabilis measurable, from mensurare to measure (see …   Etymology dictionary

  • Incommensurable — In com*men su*ra*ble, n. One of two or more quantities which have no common measure. [1913 Webster] …   The Collaborative International Dictionary of English

  • incommensurable — index different, disparate, disproportionate, inapplicable, incommensurate Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • incommensurable — Incommensurable. adj. de tout genre. Se dit de deux quantitez qui n ont point d aliquote commune. Le costé d un quarré & sa diagonale sont incommensurables …   Dictionnaire de l'Académie française

  • incommensurable — ► ADJECTIVE 1) not able to be judged or measured by the same standards. 2) Mathematics (of numbers) in a ratio that cannot be expressed by means of integers. DERIVATIVES incommensurability noun …   English terms dictionary

  • incommensurable — adj., qui n a pas de commune mesure : k sè di pâ (awé ...) <qui ne se dit pas (avec...)>, k sè dyon pa <qui ne se disent pas>, k tonbon zhamé justo <qui ne tombent jamais juste> (Albanais.001). Fra. Le périmètre du cercle est… …   Dictionnaire Français-Savoyard

  • INCOMMENSURABLE — adj. des deux genres T. d’Arithmétique et de Géométrie Qui n’a point de commune mesure, en parlant de Deux quantités. La racine carrée de 2 est incommensurable avec l’unité. Le côté d’un carré et sa diagonale sont incommensurables. La… …   Dictionnaire de l'Academie Francaise, 8eme edition (1935)

  • incommensurable — (in ko mman su ra bl ) adj. 1°   Terme d arithmétique et de géométrie. Se dit de deux quantités qui n ont point de commune mesure. La racine carrée de 2 est incommensurable avec l unité, ou, plus simplement, est incommensurable, parce qu il n y a …   Dictionnaire de la Langue Française d'Émile Littré

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