tusk in WordNet English dictionary

1. remove the tusks of animals
   "tusk an elephant"
   tusk  detusk 
   
2. stab or pierce with a horn or tusk
   "the rhino horned the explorer"
   horn  tusk 
   

1. a hard smooth ivory colored dentine that makes up most of the tusks of elephants and walruses
   ivory  tusk 
   
2. a long pointed tooth specialized for fighting or digging; especially in an elephant or walrus or hog
   tusk