Low-pH compound

The answer

ACID

4 letters. See every clue for this answer on the ACID answer page.

Used 8 times across 8 distinct years; most recently in 2026; first recorded in 2008. It appears in 6 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.

Other clues for ACID

Every other clue in this collection answered by ACID, most used first.

• Battery fluid - used 100 times, most recently in 2026
• Corrosive chemical - used 57 times, most recently in 2026
• Biting - used 52 times, most recently in 2021
• Litmus reddener - used 45 times, most recently in 2026
• Corrosive stuff - used 42 times, most recently in 2026
• Etcher's need - used 40 times, most recently in 2022
• Corrosive liquid - used 39 times, most recently in 2026
• Low-pH substance - used 35 times, most recently in 2026
• LSD - used 33 times, most recently in 2026
• Tart - used 32 times, most recently in 2026
• Kind of test - used 31 times, most recently in 2016
• Sour - used 29 times, most recently in 2021
• Corrosive compound - used 26 times, most recently in 2025
• Alkali neutralizer - used 24 times, most recently in 2018
• ___-washed jeans - used 22 times, most recently in 2026
• Etching liquid - used 21 times, most recently in 2026
• Etcher's fluid - used 20 times, most recently in 2026
• Kind of rock - used 20 times, most recently in 2021
• Battery contents - used 19 times, most recently in 2025
• Sharp - used 18 times, most recently in 2021
• Etching fluid - used 17 times, most recently in 2020
• Part of DNA - used 17 times, most recently in 2026
• Amino ___ - used 15 times, most recently in 2025
• Corrosive substance - used 14 times, most recently in 2026
• Kind of rock or rain - used 14 times, most recently in 2025
• It has a low pH - used 13 times, most recently in 2026
• Low-pH stuff - used 13 times, most recently in 2025
• Citric __ - used 12 times, most recently in 2026
• It turns litmus red - used 12 times, most recently in 2022
• Low-pH - used 12 times, most recently in 2024
• ___ rock - used 12 times, most recently in 2023
• The "A" in DNA - used 12 times, most recently in 2025
• Tums target - used 12 times, most recently in 2026
• Battery fill - used 11 times, most recently in 2026
• Etcher's supply - used 11 times, most recently in 2020
• Kind of rain - used 11 times, most recently in 2005
• Substance with a low pH - used 11 times, most recently in 2025
• Base's counterpart - used 10 times, most recently in 2026
• Base's opposite - used 10 times, most recently in 2026
• Corrosive - used 10 times, most recently in 2018
• Sarcastic - used 10 times, most recently in 2021
• Vinegary - used 10 times, most recently in 2023
• Caustic stuff - used 9 times, most recently in 2025
• DNA part - used 9 times, most recently in 2018
• Ill-natured - used 9 times, most recently in 2017
• Prilosec target - used 9 times, most recently in 2026
• ___ rain - used 9 times, most recently in 2020
• __ test - used 9 times, most recently in 2024
• Part of RNA - used 8 times, most recently in 2025
• Sour-tasting - used 8 times, most recently in 2019
• Word with indigestion or test - used 8 times, most recently in 2014
• Word with rock or rain - used 8 times, most recently in 2021
• Caustic - used 7 times, most recently in 2022
• Litmus test substance - used 7 times, most recently in 2025
• Sour substance - used 7 times, most recently in 2026
• Base counterpart - used 6 times, most recently in 2026
• Battery liquid - used 6 times, most recently in 2025
• Biting, as wit - used 6 times, most recently in 2015
• Bitter - used 6 times, most recently in 2021
• Cutting - used 6 times, most recently in 2015
• Etching agent - used 6 times, most recently in 2017
• It turns litmus paper red - used 6 times, most recently in 2023
• The "A" of "DNA" - used 6 times, most recently in 2023
• Type of test - used 6 times, most recently in 2013

Related clues

Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.

• Organic compound - ENOL, used 311 times
• Low digits - TOES, used 123 times
• Chemical compound - ENOL, used 112 times
• Low in fat - LEAN, used 105 times
• Low card - TREY, used 101 times
• Carbon compound - ENOL, used 91 times

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