concave

  • 1concave — [ kɔ̃kav ] adj. • 1314; lat. concavus, de cavus « creux » → 2. cave ♦ Qui présente une courbe, une surface en creux (⇒ biconcave). Surface, miroir concave. Moulure concave. ⇒ cavet. ⊗ CONTR. Bombé, convexe. ● concave adjectif ( …

    Encyclopédie Universelle

  • 2concave — Concave. adjectif de tout genre, Creux en rond. Il est opposé à convexe. Le ciel est concave à nostre esgard. miroir concave. la superficie concave. d un globe. Concave. s. m. La superficie interieure d un corps spherique qui est creux. Le… …

    Dictionnaire de l'Académie française

  • 3Concave — Con cave (k[o^][ng]*k[=a]*v or k[o^]n ; 277), a. [L. concavus; con + cavus hollow: cf. F. concave. See {Cave} a hollow.] 1. Hollow and curved or rounded; vaulted; said of the interior of a curved surface or line, as of the curve of the of the… …

    The Collaborative International Dictionary of English

  • 4concave — CONCAVE. adj des 2 genr. Il se dit d Une surface ou d une circonférence courbe, prise du côté qu elle est capable de contenir quelque chose. Il est opposé à convexe. Miroir concave. Il est aussi substantif. Le concave d un globe …

    Dictionnaire de l'Académie Française 1798

  • 5concave — [kän kāv′; ] also, & for n.usually [, kän′kāv΄] adj. [ME & OFr < L concavus, hollow < com , intens. + cavus, hollow: see CAVE] hollow and curved like the inside of a bowl n. a concave surface, line, object, etc.: see LENS vt. concaved,… …

    English World dictionary

  • 6Concave — Con cave, n. [L. concavum.] 1. A hollow; an arched vault; a cavity; a recess. [1913 Webster] Up to the fiery concave towering hight. Milton. [1913 Webster] 2. (Mech.) A curved sheath or breasting for a revolving cylinder or roll. [1913 Webster] …

    The Collaborative International Dictionary of English

  • 7Concave — Con cave, v. t. [imp. & p. p. {concaved}; p. pr. & vb. n. {Concaving}.] To make hollow or concave. [1913 Webster] …

    The Collaborative International Dictionary of English

  • 8concave — early 15c., from O.Fr. concave (14c.) or directly from L. concavus hollow, arched, vaulted, curved, from com , intensive prefix (see COM (Cf. com )), + cavus hollow (see CAVE (Cf. cave) (n.)) …

    Etymology dictionary

  • 9concave — means ‘having an outline or surface like the interior of a circle or sphere’, whereas convex means ‘having an outline or surface like the exterior of a circle or sphere’ …

    Modern English usage

  • 10concave — [adj] curved, depressed biconcave, cupped, dented, dimpled, dipped, excavated, hollow, hollowed, incurvate, incurvated, incurved, indented, round, rounded, sagging, scooped, sinking, sunken; concept 486 Ant. convex, distended …

    New thesaurus