| 单词 | backscatter |
| 释义 | backscatter[ bak-skat-er ] / ˈbækˌskæt ər / noun Physics.the deflection of nuclear particles or of radiation in a scattering process through an angle greater than 90°. Also back·scat·ter·ing [bak-skat-er-ing] /ˈbækˌskæt ər ɪŋ/ . Origin of backscatterFirst recorded in 1955–60; back2 + scatter Words nearby backscatterback run, backrush, Backs, back, sack, and crack, backsaw, backscatter, back score, back scratcher, backseat, backseat driver, backset Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for backscatterback scatter noun physicsthe scattering of particles or radiation, such as sound waves, X-rays, or alpha-particles, by the atoms of the medium through which they pass, in the backward direction the radiation or particles so scattered a technique whereby very long-range radars locate targets hidden by the curvature of the earth. Radar beams are reflected off the underside of the troposphere onto the target and the return beams, similarly reflected, are measured 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 backscatterbackscatter [ băk′skăt′ər ] The deflection of radiation or particles by electromagnetic or nuclear forces through angles greater than 90° to the initial direction of travel. The radiation or particles so deflected. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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