hormone
A substance formed in an organ of the body and carried by body fluids to another organ or tissue, where it has a specific effect.
Last Updated
October 7, 2025
October 7, 2025
Last updated: October 7, 2025.
This article was contributed by .
Explore More
Pain Relievers: Understanding Your OTC Options
Over-the-counter (OTC) pain relievers are medicines you can buy at a store, without a prescription from your doctor. They can decrease or stop pain. They can also lower fevers. But not all pain rel...