I'm not sure if I have the title correct, but I am trying to figure out how to determine whether to use a noun form as an adjective or a verb form as an adjective.
1) Is it an extension leg or an extending leg?
2) Is it a stabilization wing or a stabilizing wing?
Is this a case-by-case thing? Does it depend upon context? I'm hoping somebody can point me in the right direction. Thanks!