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in the PONS Dictionary

acid·ity [əˈsɪdəti, Am -ət̬i] N no pl

1. acidity CHEM:

acidity
Säuregehalt m
acidity
Acidität f <-> spec

2. acidity (sourness):

acidity
Säure f <-, -n>

3. acidity (criticism):

acidity
Schärfe f <-, -n>
acidity of remark
Bissigkeit f <->

acidity [əˈsɪdəti], acid content N

acidity
Azidität (Säuregehalt)

buffer acidity

buffer acidity
Säure abpuffern