an early name for the J/psi particle.
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This tall, horizontally branched cactus is probably the most recognizable cactus in Arizona. What is it called?
Origin of J particle
1970–75; named by S.C.C. Ting, allegedly from the resemblance of the letter J to the Chinese character for Ting
Words nearby J particle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Scientific definitions for J particle
See J/psi particle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.