What does the abbreviation "ac" stand for in medical terminology?

The abbreviation "ac" in medical terminology stands for "before meals." This is commonly used in medical prescriptions and notes to indicate that a medication should be taken prior to eating. Administering certain medications before meals can improve their absorption and effectiveness, as food can sometimes interact with medications and affect how they are metabolized by the body. Understanding these abbreviations is crucial for proper medication administration and patient care in a clinical setting.