WordNet: plutonium pit, plutonium trigger

a steel or beryllium sphere containing plutonium 239 that triggers nuclear fission when compressed by explosives

• hypernym trigger

• part holonym A-bomb, atom bomb, atomic bomb, fission bomb, plutonium bomb

plutonium pit

• (suomi) plutoniumkäynnistin (synonyymi; <unconfirmed/>)

plutonium trigger

• (suomi) plutoniumkäynnistin (synonyymi; <unconfirmed/>)