(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.

Any interface through which there is no transfer of heat or entropy

(computing) Alternative spelling of 8514/A

Alternative form of adeno-, used before vowels.

plural of adder fly

(idiomatic) To know or recognise someone at all.