Definition of mu-meson
: a meson having a mass approximately 200 times that of the electron
Keep scrolling for more
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors
- Why is there a 'd' in 'fridge' but not in 'refrigerator'?
- 'All Intensive Purposes' or 'All Intents and Purposes'?
- Is Singular 'They' a Better Choice?