brain hormone


Definition of brain hormone

1 : a hormone that is secreted by neurosecretory cells of the insect brain and that stimulates the prothoracic glands to secrete ecdysone
2 : any of various hormones (such as serotonin) produced in or acting on the vertebrate brain or central nervous system not usually used technically

Examples of brain hormone in a Sentence

Recent Examples on the Web On the flip side, the production of melatonin, a brain hormone that regulates sleep, is triggered when the body is in darkness. Popular Science, 24 Jan. 2021 The male pill works by blocking those brain hormones, which then lowers testosterone levels and, is expected to shut down sperm production. Jonathan Lapook, CBS News, 20 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'brain hormone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of brain hormone

1957, in the meaning defined at sense 1

Learn More About brain hormone

Time Traveler for brain hormone

Time Traveler

The first known use of brain hormone was in 1957

See more words from the same year

Dictionary Entries Near brain hormone


brain hormone


See More Nearby Entries 

Statistics for brain hormone

Cite this Entry

“Brain hormone.” Dictionary, Merriam-Webster, Accessed 2 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for brain hormone

brain hormone


Medical Definition of brain hormone

: any of various hormones (as serotonin and melatonin) produced in or acting on the vertebrate brain or central nervous system not usually used technically

More from Merriam-Webster on brain hormone Encyclopedia article about brain hormone


Test Your Vocabulary

Name that Thing: Flower Edition

Spell It

Can you spell these 10 commonly misspelled words?

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!