核かく異い性せい体たい

noun

nuclear isomer

Technical term in nuclear physics for a metastable state of an atomic nucleus.

• 核かく異い性せい体たいは、励れい起き状じょう態たいの原げん子し核かくが比ひ較かく的てき長ながい半はん減げん期きを持もつ現げん象しょうです。

  A nuclear isomer is a phenomenon where an excited atomic nucleus has a relatively long half-life.