PIONS
7
Scrabble
9
WWF
P(3) I(1) O(1) N(1) S(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- Any of three semistable mesons, having positive, negative or neutral charge, composed of up and down quarks/antiquarks.
Source: Wiktionary
