What does acid-free mean?
Acid-free means Alkaline or neutral; not acidic..
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Pronunciation varies by accent · adjective
Alkaline or neutral; not acidic..
an acid-free soil
Printed on acid-free paper.
an acid-free etching technique
Use acid-free when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Acid-free means Alkaline or neutral; not acidic..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
an acid-free soil
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