Level 5 · word 8,975 of 20,000
proton
/ˈproʊˌtɑːn/
American
- n. 质子
- Definition
- n. a very small particle with a positive electric charge in an atom's nucleus
- Example
- A proton carries a positive charge inside the atom's nucleus.
- 质子在原子核内带正电荷。
Word mapSubatomic particles