Advertisement

Dictionary


first' mes'senger



Biochem.
a hormone that triggers a biochemical reaction at a site removed from its release. Cf. second messenger.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

first matefirst mortgage

Related Content


Advertisement

Play Hangman

Play Poptropica

Play Same Game

Try Our Math Flashcards