a short-lived subatomic particle that cannot be observed directly.

listen to the pronunciation of a short-lived subatomic particle that cannot be observed directly.
Английский Язык - Английский Язык

Определение a short-lived subatomic particle that cannot be observed directly. в Английский Язык Английский Язык словарь

A short-lived subatomic particle that cannot be observed directly.
resonance