What is the difference between an antibiotic and an antimicrobic?

An antibiotic specifically refers to a substance produced by a microorganism that can kill or inhibit the growth of other microorganisms. On the other hand, an antimicrobial is a broader term that encompasses agents that can kill or inhibit the growth of microorganisms, including bacteria, viruses, fungi, and parasites. So, all antibiotics are antimicrobials, but not all antimicrobials are antibiotics.