Definition, Meaning & Synonyms

hormone

noun
/ˈhɔːrmoʊn/
Definition
Hormones are chemical messengers in the body that regulate various physiological functions.
Examples
  • Insulin is a hormone that helps control blood sugar levels.
  • During puberty, various hormones cause physical changes in the body.
  • The thyroid gland produces hormones that regulate metabolism.
Meaning
A hormone is a substance produced by a gland in the body that is carried in the blood to organs and tissues, where it causes a specific effect.
Synonyms
  • chemical messenger
  • signal molecule
  • biomolecule