Of or relating to the replacement of three of several atoms or groups in a compound, such as an amine in which three valences of the functional group are taken by carbon atoms. c. Of or relating to salts of acids containing three replaceable hydrogen atoms.
Hayden is a town in Blount County, Alabama, United States. At the 2010 census the population was 444.[3]
Jefferson County is the most populous county in the State of Alabama. As of the 2010 census, the population was 658,466, making it the most populous county in Alabama. Its county seat is Birmingham, the most populous city in the state.