Crossword Genius

Low-pH chemical (4)

Ross

I believe the answer is:

acid

'low-ph chemical' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for acid that I've seen before include "something sharp" , "So-called drug" , "- - -drop, sweet" , "Sharp - tart - kind of house party" , "Alkali's opposite" .)

I've seen this clue in the Newsday.
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