Crossword Genius

Corrosive compound (4)

Ross

I believe the answer is:

acid

'corrosive compound' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for acid that I've seen before include "Tart, sour" , "Sarcastic (could be sulphuric?)" , "It is neutralized by alkali" , "Polluted precipitation" , "- - -drop, sweet" .)

I've seen this clue in the Universal and the USA Today.
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