The difference is Pu-devices are easier to weaponize, like putting on a missile.
From the forbes.com
The House of Saud will keep coming up with the cash to weaponize them.
From the infowars.com
It is unclear, however, if they have developed a way to weaponize or effectively deliver them.
From the cnn.com
Dr. Fouchier said it would be easier to weaponize other germs.
From the post-gazette.com
Of course to properly weaponize this newer Ebola, it would need incased in a spore at maturity.
From the newscientist.com
Fast forward to 2015, Israel's latest estimate of when Iran could feasibly weaponize a nuclear capacity.
From the battleland.blogs.time.com
Maybe they'll just get one of their terrorist subcontractors to weaponize the St. Albans pancake batter.
From the washingtontimes.com
The United States and other Western nations say they believe Iran intends to weaponize the technology.
From the washingtonpost.com
They want to know not just about all the plutonium the North Koreans have been able to make and weaponize.
From the edition.cnn.com
More examples
Make into or use as a weapon or a potential weapon; "Will modern physicists weaponize String Theory?"
(Weaponization) The process of constructing a nuclear device, or testing its component parts separately or in a weapon model, to validate its design.
(Weaponization) The process of making a nuclear explosive device "deliverable" so that it can be used as part of a weapon system (i.e., bomb or warhead).
A pot cover worn on the hand will add zing to any palm strike. Think: whaddya got? Junk on the street? Handy desk items? Piping hot coffee? A book can be thrust into the face or throat; the bottom of a chair can be wielded, lion-tamer fashion to drive an attacker back.