We use cookies to enhance your experience on our website. By continuing to use our website, you are agreeing to our use of cookies. You can change your cookie settings at any time. Find out more

Subscriber login

Library card login

Other

X Close menu

Dictionary Language resources

hormone

Syllabification: (hor·mone)

Pronunciation: /ˈhôrˌmōn/

Translate hormone | into French | into German | into Italian | into Spanish

Definition of hormone

noun

Physiology

a regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action.
a synthetic substance with an effect similar to that of an animal or plant hormone.
(hormones) a person’s sex hormones as held to influence behavior or mood.