单词 | tetrahedron |
释义 | tetrahedron[ te-truh-hee-druhn ] / ˌtɛ trəˈhi drən / noun, plural tet·ra·he·drons, tet·ra·he·dra [te-truh-hee-druh]. /ˌtɛ trəˈhi drə/.Geometry. a solid contained by four plane faces; a triangular pyramid. any of various objects resembling a tetrahedron in the distribution of its faces or apexes. Origin of tetrahedron1560–70; tetra- + -hedron, modeled on Late Greek tetráedron, noun use of neuter of tetráedros four-sided Words nearby tetrahedrontetragonal trisoctahedron, tetragram, Tetragrammaton, tetrahedral, tetrahedrite, tetrahedron, tetrahydrate, tetrahydric, tetrahydro-, tetrahydrocannabidinol, tetrahydrocannabinol Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for tetrahedronBritish Dictionary definitions for tetrahedrontetrahedron / (ˌtɛtrəˈhiːdrən) / noun plural -drons or -dra (-drə)a solid figure having four plane faces. A regular tetrahedron has faces that are equilateral trianglesSee also polyhedron any object shaped like a tetrahedron Derived forms of tetrahedrontetrahedral, adjectivetetrahedrally, adverbWord Origin for tetrahedronC16: from New Latin, from Late Greek tetraedron; see tetra-, -hedron 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 tetrahedrontetrahedron [ tĕt′rə-hē′drən ] Plural tetrahedrons tetrahedraA polyhedron having four faces. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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