What is the medical term content suffix -ac?

The medical term content suffix -ac typically refers to "pertaining to" or "relating to".

Here are some examples:

* Cardiac: Pertaining to the heart.

* Hepatic: Pertaining to the liver.

* Gastric: Pertaining to the stomach.

* Pulmonary: Pertaining to the lungs.

It's important to note that while -ac is a common suffix, it's not the only one used to indicate "pertaining to". Other suffixes, such as "-al", "-ic", and "-ar", can also convey this meaning.