fang
noun /fæŋ/
  /fæŋ/
 [usually plural]- either of two long sharp teeth at the front of the mouths of some animals, such as a snake or dog
enlarge image- The snake sank its fangs into its victim.
 - The wolf growled and bared its sharp fangs.
 
Oxford Collocations Dictionaryadjective- long
 - sharp
 - white
 - …
 
- bare
 - reveal
 - show
 - …
 
Word Originlate Old English (denoting ‘booty’ or ‘spoils’), from Old Norse fang ‘capture, grasp’. A sense ‘trap, snare’ is recorded from the mid 16th cent.; both this and the original sense survive in Scots. The current sense (also mid 16th cent.) reflects the same idea of ‘something that catches and holds’. 
