The act of making something into a weapon or making more effective as a weapon.
2007, Michael Sheehan, The International Politics of Space:At the dawn of the space age the Eisenhower administration came to the conclusion that the weaponisation of space was not in the interests of the United States.
2012, Christopher Clark, The Sleepwalkers, Penguin 2013, p. 278:The weaponization of international credit was nothing new, but its deployment in this instance locked Bulgaria into the policy of the Triple Alliance ….