Wiktionary
acid-proof
a. (alternative spelling of acidproof English)
Usage examples of "acid-proof".
The Marines exchanged another wordless glance--the burn pattern around the edges of the rent was very similar to what they'd seen in the chameleons of Marines who were hit by the Skinks' acid guns before the Marines had received acid-proof uniforms during the Kingdom Campaign.
His company was whole and suffered no casualties, thanks to their acid-proof chameleons and the fact that all of their plasma shields worked.
Everyone was wearing Marine chameleons festooned with nonchameleon streamers for visibility, but the Marines didn't trust the locals--or even the navy personnel--to keep their acid-proofed clothing buttoned up, so they insisted on the safety margin and intended to enforce it.