| 单词 | prism |
| 释义 | prism[ priz-uhm ] / ˈprɪz əm / SEE SYNONYMS FOR prism ON THESAURUS.COM nounOptics. a transparent solid body, often having triangular bases, used for dispersing light into a spectrum or for reflecting rays of light. Geometry. a solid having bases or ends that are parallel, congruent polygons and sides that are parallelograms. Crystallography. a form having faces parallel to the vertical axis and intersecting the horizontal axes. Origin of prism1560–70; <Late Latin prīsma<Greek prîsma literally, something sawed, akin to prī́zein to saw, prīstēs sawyer Words nearby prismPriscian, Priscilla, prise, prisere, prisiadka, prism, prismatic, prismatic compass, prismatic layer, prismatic telescope, prismatoid Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for prismBritish Dictionary definitions for prismprism / (ˈprɪzəm) / nouna transparent polygonal solid, often having triangular ends and rectangular sides, for dispersing light into a spectrum or for reflecting and deviating light. They are used in spectroscopes, binoculars, periscopes, etc a form of crystal with faces parallel to the vertical axis maths a polyhedron having parallel, polygonal, and congruent bases and sides that are parallelograms Word Origin for prismC16: from Medieval Latin prisma, from Greek: something shaped by sawing, from prizein to saw 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 Cultural definitions for prismprism [ (priz-uhm) ] A solid figure in geometry with bases or ends of the same size and shape and sides that have parallel edges. Also, an object that has this shape. notes for prismA prism of glass (or a similar transparent material) can be used to bend different wavelengths of light by different amounts through refraction. This bending separates a beam of white light into a spectrum of colored light. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for prismprism [ prĭz′əm ] n.A solid figure whose bases or ends have the same size and shape and are parallel to one another, and each of whose sides is a parallelogram. A transparent body of this form, often of glass and usually with triangular ends, used for separating white light passed through it into a spectrum or for reflecting beams of light. Such a body used in testing or correcting imbalance of the extrinsic ocular muscles. Other words from prismpris•mat′ic (-măt′ĭk) adj.The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for prismprism [ prĭz′əm ] A geometric solid whose bases are congruent polygons lying in parallel planes and whose sides are parallelograms. A solid of this type, often made of glass with triangular ends, used to disperse light and break it up into a spectrum. A crystal form having 3, 4, 6, 8, or 12 faces parallel to the vertical axis and intersecting the horizontal axis. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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