Look up: Viperidae

1. Viperidae
   [n] - Old World vipers
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. viperidae
   A family of snakes comprising three subfamilies: azemiopinae (the mountain viper, the sole member of this subfamily), viperinae (true vipers), and crotalinae (pit vipers). They are widespread throughout the world, being found in the united states, central and south america, europe, asia and africa. ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
3. Viperidae
   family Viperidae noun Old World vipers
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
4. Viperidae
   Viperidae is the 'typical vipers' family of reptiles of the sub-order serpentes (Snakes). The family comprises three sub-families, eleven genera and about 49 species native to Europe, Asia and Africa living in temperate and tropical climates.
   Found on http://www.probertencyclopaedia.com/brow
   
   
5. Viperidae
   Type: Term Pronunciation: vī-per′i-dē Definitions: 1. A family of poisonous Old World snakes, the true vipers, composed of about 50 species and characterized by two relatively long caniculated fangs at the front of the upper jaw that are attached to movable bones, allowing them to be...
   Found on http://www.medilexicon.com/medicaldictio
   
   
6. Viperidae
   :`Common names:` vipers, viperids. The `Viperidae` are a family of venomous snakes found all over the world, except in Antarctica, Australia, Ireland, New Zealand, Madagascar, Hawaii, various other isolated islands, and above the Arctic Circle. All have relatively long, hinged fangs that perm...
   Found on http://en.wikipedia.org/wiki/Viperidae