death adder

from The Century Dictionary.

• noun The black-snake of Australia, Pseudechis porphyriacus. See black-snake, 1.
• noun A venomous serpent of Australia, Acanthophis antarctica. See Acanthophis.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A snake of the genus Acanthophis, a group of highly venomous elapids found in Australia and New Guinea.
• noun The copperhead, a venomous pit viper species Agkistrodon contortrix, found in North America.
• noun The eastern hognose snake, a non-venomous colubrid species found in North America.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun venomous Australian snake resembling an adder