The term 'Antibiotic' was first used by

Selman Abraham Waksman, the microbiologist, was born in the rural Ukrainian town of Novaya Priluka. He discovered streptomycin and used the word antibiotic for the first time in 1943.
An antibiotic is a type of antimicrobial substance active against bacteria. They are the most important type of antibacterial agent for fighting bacterial infections. They either kill or inhibit the growth of bacteria.