| 单词 | d particle |
| 释义 | D particlenoun Physics.D meson. Origin of D particleFirst recorded in 1975–80 Words nearby D particledoze off, dozer, dozy, DP, D.P.A., D particle, DPB, DPC, D.P.H., DPhil, dpi Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Scientific definitions for D particleD particle Either of two subatomic particles in the meson family, one neutral and one positively charged, having masses 3,649 and 3,658 times that of the electron and average lifetimes of 4.2 X 10-13 and 1.1 X 10-12 seconds, respectively. See Table at subatomic particle. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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