The chemical produced by a living organism that kills or inhibits the growth of other organisms is called an antibiotic.

Here's why:

* Antibiotics are substances produced by microorganisms (like bacteria or fungi) that have the ability to kill or inhibit the growth of other microorganisms, specifically bacteria.

* Antibiotics are a type of antimicrobial - a broader term for any substance that kills or inhibits the growth of microorganisms.

* Antimicrobials can be produced naturally by organisms, like antibiotics, or they can be synthesized in a laboratory.

Let me know if you'd like to explore the specific types of antibiotics or how they work!