Medical Dictionary


noun mes·sen·ger \ˈmes-ən-jər\

Medical Definition of MESSENGER

:  a substance (as a hormone) that mediates a biological effect—see first messenger, second messenger
May 28, 2015
fictioneer Hear it
someone who writes fiction
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears