Learn how to say Antibiotic correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word antibiotic:
a medicine (such as penicillin or its derivatives) that inhibits the growth of or destroys microorganisms:
course of antibiotics
an injection of antibiotic
relating to antibiotics:
a prolonged course of antibiotic therapy
mid 19th century (in the sense ‘doubting the possibility of life in a particular environment’): from anti- + Greek biōtikos ‘fit for life’ (from bios ‘life’)