jacket

Noun

• the tough metal shell casing for certain kinds of ammunition

• the outer skin of a potato

• (dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
  • tomorrow my dentist will fit me for a crown
    

• an outer wrapping or casing
  • phonograph records were sold in cardboard jackets
    

• a short coat

Verb

• put a jacket on
  • The men were jacketed
    

• provide with a thermally non-conducting cover
  • The tubing needs to be jacketed
    

Related words

• Synonyms: 
  crown , crownwork , jacket crown , cap