trapezoid

trapezoid
trapezoid 1706, "a trapezium," from Mod.L. trapezoides, from Late Gk. trapezoeides (Proclus), special use by Euclid of Gk. trapezoeides "trapezium-shaped," from trapeza, lit. "table" (see TRAPEZIUM (Cf. trapezium)), + -oeides "shaped" (see -OID (Cf. -oid)). Technically, a quadrilateral figure with no two sides parallel. But in English since c.1800, often confused with TRAPEZIUM (Cf. trapezium) in its sense of "a quadrilateral figure having only two sides parallel."

Etymology dictionary. 2014.

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  • Trapezoid — Trap e*zoid, a. 1. Having the form of a trapezoid; trapezoidal; as, the trapezoid ligament which connects the coracoid process and the clavicle. [1913 Webster] 2. (Anat.) Of or pertaining to the trapezoid ligament; as, the trapezoid line. [1913… …   The Collaborative International Dictionary of English

  • trapezoid — TRAPEZOÍD, trapezoide, s.n. Suprafaţă generată prin rotirea unui trapez în jurul unei axe din planul său, pe care nu o intersectează. – Din fr. trapézoïde. Trimis de ionel bufu, 30.06.2004. Sursa: DEX 98  trapezoíd s. n. (sil. zo id), pl.… …   Dicționar Român

  • trapezoid — [trap′i zoid΄] n. [ModL trapezoides < Gr trapezoeides, shaped like a trapezoid: see TRAPEZIUM & OID] 1. a plane figure with four sides, only two of which are parallel: see QUADRILATERAL 2. Brit. var. of TRAPEZIUM (sense 1) 3. Anat. a small… …   English World dictionary

  • Trapezoid — Trap e*zoid, n. [Gr. ? trapezoid shaped; ? table + ? shape, likeness: cf. F. trap[ e]zo[ i]de. See {Trapezium}.] 1. (Geom.) A plane four sided figure, having two sides parallel to each other. [1913 Webster] 2. (Anat.) A bone of the carpus at the… …   The Collaborative International Dictionary of English

  • Trapezoïd — Trapezoïd, s.u. Trapez 1). Daher Trapezoideīsches Ligament des Schulterblattes, das viereckige Band des Schulterblattes, s.u. Schulterblattbänder a) …   Pierer's Universal-Lexikon

  • Trapezoïd — Trapezoïd, s. Paralleltrapez …   Meyers Großes Konversations-Lexikon

  • trapezoid — trapezòīd m <G trapezoída> DEFINICIJA mat. četverokut koji nema paralelnih stranica ETIMOLOGIJA nlat. trapezoides ← grč. trapezoeidḗs, v. trapez + id …   Hrvatski jezični portal

  • trapezoid — ► NOUN Geometry 1) Brit. a quadrilateral with no sides parallel. 2) N. Amer. a quadrilateral with one pair of sides parallel. DERIVATIVES trapezoidal adjective …   English terms dictionary

  • Trapezoid — For other uses, see Trapezoid (disambiguation) and Trapezium (disambiguation). Trapezoid (AmE) Trapezium (BrE) A Trapezoid Type quadrilateral Edges and …   Wikipedia

  • trapezoid — 1. Resembling a trapezium. SYN: trapeziform. 2. A geometrical figure resembling a trapezium except that two of its opposite sides are parallel. 3. SYN: t. (bone). 4. SYN: t. body. [G. trapeza, table, + eidos, resemblance] * * * trap·e·zoid trap ə …   Medical dictionary

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