jacket Meaning, Definition & Usage

  1. noun a short coat
  2. noun an outer wrapping or casing
    • phonograph records were sold in cardboard jackets
  3. noun (dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
    jacket crown; crownwork; crown; cap.
    • tomorrow my dentist will fit me for a crown
  4. noun the outer skin of a potato
  5. noun the tough metal shell casing for certain kinds of ammunition
  6. verb provide with a thermally non-conducting cover
    • The tubing needs to be jacketed
  7. verb put a jacket on
    • The men were jacketed

WordNet

Jack"et noun
Etymology
F. jaquette, dim. of jaque. See 3d Jack, n.
Definitions
  1. A short upper garment, extending downward to the hips; a short coat without skirts.
  2. An outer covering for anything, esp. a covering of some nonconducting material such as wood or felt, used to prevent radiation of heat, as from a steam boiler, cylinder, pipe, etc.
  3. (Mil.) In ordnance, a strengthening band surrounding and reënforcing the tube in which the charge is fired.
  4. A garment resembling a waistcoat lined with cork, to serve as a life preserver; -- called also cork jacket.
Jack"et transitive verb
Definitions
  1. To put a jacket on; to furnish, as a boiler, with a jacket.
  2. To thrash; to beat. Low

Webster 1913