"Acidic conditions" refers to an environment or situation that has a high level of acidity. It means that there is an excess of acid or a low pH value, which can cause certain reactions or properties to occur. Full definition
By altering his pH levels, we are making it a hostile environment for the yeast to grow as it doesn't grow well in acidic condition. (dog-grooming-training.com)
More acidic conditions promoted changes in the dynamics of organic matter. (oceanacidification.de)
The hypothesis was that certain proteins produced acidic conditions that helped dissolve bones. (theveganrd.com)