(group theory) Any (often, but not necessarily, abelian) group whose binary operation is called addition.

plural of address bar

(computing, graphical user interface) A bar in a web browser that displays the address (uniform resource identifier) of the page or resource being displayed.

The delivery address of an addressee, written on the page of a letter.

(electronics) A specific logical circuit that performs an addition operation on three bits.

(electronics) A specific logical circuit that performs an addition operation on two bits.

(rare) Addiction to multiple substances.

A snake of the genus Acanthophis, a group of highly venomous elapids found in Australia and New Guinea. / The copperhead, a venomous pit viper species Agkistrodon contortrix, found in North America.

A species of death adder from Australia, taxonomic name Acanthophis antarcticus, known for its venomosity and speed.

plural of adder fly