[ zee-zeer-oh ]
/ ˈziˈzɪər oʊ /
one of three particles, called intermediate vector bosons, that are believed to transmit the weak force. Symbol: Z0
Generation ZRead more in this article about some frequently asked questions and fun facts related to our definitions.
Why Was Z Removed From The Alphabet (And Then Put Back)?Z’s history includes a time when it was so infrequently used that it was removed from the alphabet altogether.
Also called Z particle, Z boson.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
An electrically neutral subatomic particle that mediates the weak nuclear force. The Z boson has a mass 182,000 times that of the electron. Unlike the other weak force mediator (the W boson), it does not change particles it interacts with into other types of particles. Like the photon, the Z boson is its own antiparticle. See Table at subatomic particle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.