s/n3970673

Information
has gloss	(noun) a steel or beryllium sphere containing plutonium 239 that triggers nuclear fission when compressed by explosives plutonium pit, plutonium trigger
lexicalization	eng: plutonium pit
lexicalization	eng: plutonium trigger
subclass of	(noun) a device that activates or releases or causes something to happen trigger

Links
part of	(noun) a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239) fission bomb, plutonium bomb, A-bomb, atom bomb, atomic bomb