Acid-fast and Proof

Acid-fast adjective - Not easily decolorized by acid solutions; pertains to micro-organisms (especially the tubercle bacillus that causes tuberculosis).

Proof and acid-fast are semantically related. In some cases you can use "Proof" instead an adjective phrase "Acid-fast".

Proof adjective - (used in combination or as a suffix) able to withstand.

Acid-fast and proof are semantically related. You can use "Acid-fast" instead an adjective "Proof".

Nearby Words: proofed, proofing