hormone

Meanings

1. 1
   noun

   a chemical messenger produced in one part of an organism and carried to other cells or tissues, where it regulates their activity

   Insulin is a hormone that helps regulate blood glucose.

2. 2
   noun

   a synthetic substance with the same or a similar physiological action as a naturally produced hormone

   The treatment supplies a hormone that the patient's body no longer produces adequately.

3. 3
   noun

   a signaling substance produced by a plant that regulates growth, development, or responses to the environment

   Auxin is a plant hormone involved in directing stem growth toward light.

Common collocations

• steroid hormone Noun + noun

Coined in the early twentieth century from Greek hormon, 'setting in motion,' the present participle of horman, 'to urge on or excite.' The name emphasizes how a substance released in one tissue can activate or regulate activity elsewhere in an organism.

Topics

External links

• Cambridge Dictionary
• Wiktionary
• Google Images