jacket in WordNet English dictionary

1. (dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
   "tomorrow my dentist will fit me for a crown"
   crown  crownwork  jacket  jacket crown  cap 
   
2. a short coat
   jacket 
   
3. an outer wrapping or casing
   "phonograph records were sold in cardboard jackets"
   jacket 
   
4. the tough metal shell casing for certain kinds of ammunition
   jacket 
   
5. the outer skin of a potato
   jacket 
   

1. put a jacket on
   "The men were jacketed"
   jacket 
   
2. provide with a thermally non-conducting cover
   "The tubing needs to be jacketed"
   jacket