Enter a clue or pattern or both:
The Clue
Subatomic particle with no electric charge (8 letter answer)
The Answer
NEUTRINO
Tags
Notes
The answer NEUTRINO is so rare that it appears less than once every 2900 puzzles.
Related Clues
Elementary particle
It's free of charge
Particle name coined by Enrico Fermi
Definition
NEUTRINO as a noun:
1. an elementary particle with zero charge and zero mass