单词 | polyhedron |
释义 | polyhedron[ pol-ee-hee-druhn ] / ˌpɒl iˈhi drən / noun, plural pol·y·he·drons, pol·y·he·dra [pol-ee-hee-druh]. /ˌpɒl iˈhi drə/.a solid figure having many faces. Origin of polyhedron1560–70; <Greek polýedron, neuter of polýedros having many bases. See poly-, -hedron Words nearby polyhedronpolygynous, polygyny, polygyria, polyhedral, polyhedral angle, polyhedron, polyhedrosis, polyhidrosis, polyhistor, polyhydramnios, polyhydric Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for polyhedronBritish Dictionary definitions for polyhedronpolyhedron / (ˌpɒlɪˈhiːdrən) / noun plural -drons or -dra (-drə)a solid figure consisting of four or more plane faces (all polygons), pairs of which meet along an edge, three or more edges meeting at a vertex. In a regular polyhedron all the faces are identical regular polygons making equal angles with each other. Specific polyhedrons are named according to the number of faces, such as tetrahedron, icosahedron, etc Derived forms of polyhedronpolyhedral, adjectiveWord Origin for polyhedronC16: from Greek poluedron, from poly- + hedron side, base Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for polyhedronpolyhedron [ pŏl′ē-hē′drən ] Plural polyhedrons polyhedraA three-dimensional geometric figure whose sides are polygons. A tetrahedron, for example, is a polyhedron having four triangular sides.♦ A regular polyhedron is a polyhedron whose faces are all congruent regular polygons. The regular tetrahedron (pyramid), hexahedron (cube), octahedron, dodecahedron, and icosahedron are the five regular polyhedrons. Regular polyhedrons are a type of Archimedean solid. Other words from polyhedronpolyhedral adjectiveThe American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
随便看 |
英语词典包含192737条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。