ANTIBIOTIC

[noun] - a medicine or chemical that can destroy harmful bacteria in the body or limit their growthI'm taking antibiotics for a throat infection. [C]The doctor has recommended a one-month course of antibiotics to clear up her acne. [C]Some types of antibiotic are used to promote growth in farm animals. [U]Beehive glue contains a substance which has an antibiotic effect and could be used in medicines.