noun
nuclear missile
A missile equipped with a nuclear warhead. Used in military, political, and news contexts.
その国は核ミサイルの発射実験を行った。
That country conducted a nuclear missile launch test.
核兵器 is a broader term for nuclear weapons in general, while 核ミサイル specifically refers to a missile delivery system.
Compound of 核 (kaku, 'nuclear') and ミサイル (misairu, from English 'missile').