Trihedron \Tri*he"dron\, n. [Pref. tri- + Gr. ? a seat, base.] (Geom.) A figure having three sides. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • trihedron — /truy hee dreuhn/, n., pl. trihedrons, trihedra / dreuh/. Geom. the figure determined by three planes meeting in a point. Also, trihedral. [1820 30; TRI + HEDRON] * * * …   Universalium

  • trihedron — noun A geometric figure composed of three planes meeting at a single vertex. See Also: trihedral …   Wiktionary

  • trihedron — [trʌɪ hi:drən, hɛdrən] noun (plural trihedra drə or trihedrons) a solid figure having three sides or faces (in addition to the base or ends). Derivatives trihedral adjective &noun Origin C19 (earlier (C18) as trihedral): from …   English new terms dictionary

  • trihedron — tri·he·dron …   English syllables

  • trihedron — /traɪˈhidrən/ (say truy heedruhn) noun (plural trihedrons or trihedra /traɪˈhidrə/ (say truy heedruh)) the figure determined by three planes meeting in a point …   Australian English dictionary

  • trihedron —   n. solid figure of three planes.    ♦ trihedral, a …   Dictionary of difficult words

  • trihedron — n. a figure of three intersecting planes …   Useful english dictionary

  • Darboux frame — In the differential geometry of surfaces, a Darboux frame is a natural moving frame constructed on a surface. It is the analog of the Frenet–Serret frame as applied to surface geometry. A Darboux frame exists at any non umbilic point of a surface …   Wikipedia

  • Frenet–Serret formulas — Binormal redirects here. For the category theoretic meaning of this word, see Normal morphism. In vector calculus, the Frenet–Serret formulas describe the kinematic properties of a particle which moves along a continuous, differentiable curve in… …   Wikipedia

  • triedral — Trihedral Tri*he dral, a. [See {Trihedron}.] (Geom.) Having three sides or faces; thus, a trihedral angle is a solid angle bounded by three plane angles. [Written also {triedral}.] [1913 Webster] …   The Collaborative International Dictionary of English

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