pentagon

pentagon (n.) plane figure with five angles and five sides, 1560s, from M.Fr. pentagone, from L.L. pentagonum "pentagon," from Gk. pentagonon, properly neuter of adjective pentagonos "five-angled," from pente "five" (see FIVE (Cf. five)) + gonia "angle" (see KNEE (Cf. knee) (n.)). The U.S. military headquarters Pentagon was completed 1942, so called for its shape; used allusively for "U.S. military leadership" from 1945.

Etymology dictionary. 2014.

Look at other dictionaries:

  • pentagon — PENTAGÓN, pentagoane, s.n. (mat.) Poligon plan cu cinci laturi şi cinci unghiuri. – Din fr. pentagone, germ. Pentagon, lat. pentagonus. Trimis de ana zecheru, 13.09.2007. Sursa: DEX 98  PENTAGÓN s. (geom.) (înv.) cinciunghi …   Dicționar Român

  • Pentagon — Pen ta*gon, n. [Gr. ?; ? (see {Penta }) + gwni a angle: cf. L. pentagonium, F. pentagone.] (Geom.) A plane figure having five angles, and, consequently, five sides; any figure having five angles. [1913 Webster] {Regular pentagon}, a pentagon in… …   The Collaborative International Dictionary of English

  • pentagon — pȅntagōn m DEFINICIJA 1. mat. peterokut 2. (Pentagon) a. peterokutna zgrada blizu Washingtona u kojoj su uredi Ministarstva obrane SAD a b. meton. glavni stožer vojske Sjedinjenih Američkih Država ETIMOLOGIJA penta + gon1 …   Hrvatski jezični portal

  • pentagon — ► NOUN 1) a plane figure with five straight sides and five angles. 2) (the Pentagon) the headquarters of the US Department of Defense, near Washington DC. DERIVATIVES pentagonal adjective …   English terms dictionary

  • pentagon — [pen′tə gän΄] n. [L pentagonum < Gr pentagōnon: see PENTA & GON] a plane figure with five angles and five sides ☆ the Pentagon a five sided building in Arlington, Va., in which the main offices of the U.S. Department of Defense are located;… …   English World dictionary

  • Pentagon — (v. gr.), Fünfeck …   Pierer's Universal-Lexikon

  • Pentagōn — (griech.), s. Fünfeck …   Meyers Großes Konversations-Lexikon

  • Pentagon — Pentagōn (grch.), Fünfeck; Pentagondodekaēder, s. Dodekaeder [Abb. 435 b]; Pentagonikositetraēder, hemiëdrische Kristallform des regulären Systems, von 24 unregelmäßigen Fünfecken begrenzt …   Kleines Konversations-Lexikon

  • pentagon — n a flat shape with five sides and five angles >pentagonal [penˈtægənəl] adj …   Dictionary of contemporary English

  • Pentagon — In geometry, a pentagon is any five sided polygon. A pentagon may be simple or self intersecting. The internal angles in a simple pentagon total 540°. Regular pentagons The term pentagon is commonly used to mean a regular convex pentagon, where… …   Wikipedia

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