Search Result for "plutonium trigger":
Wordnet 3.0

NOUN (1)

1. a steel or beryllium sphere containing plutonium 239 that triggers nuclear fission when compressed by explosives;
[syn: plutonium trigger, plutonium pit]



WordNet (r) 3.0 (2006):

plutonium trigger
    n 1: a steel or beryllium sphere containing plutonium 239 that
         triggers nuclear fission when compressed by explosives
         [syn: plutonium trigger, plutonium pit]