Douglas Harper's Etymology Dictionary
manipulable
1859, from manipulate + -able. Related: Manipulability.
Wiktionary
manipulable
a. manipulatable
WordNet
manipulable
adj. easily managed (controlled or taught or molded); "tractable young minds"; "gold is tractable"; "the natives...being...of an intelligent tractable disposition"- Samuel Butler [syn: tractable] [ant: intractable]
Usage examples of "manipulable".
Not with the first-stage boosters, which were manipulable and detonable masses of ball lightning, but with those boosters' culminations, the Vangs, which were ball lightning raised to the sixth power and which only the frightful energies of the boosters could bring into being.