jacket

¹jack·et

noun \ˈja-kət\

Definition of JACKET

1

a : a garment for the upper body usually having a front opening, collar, lapels, sleeves, and pockets

b : something worn or fastened around the body but not for use as clothing

2

a (1) : the natural covering of an animal (2) : the fur or wool of a mammal

b : the skin of a potato

3

: an outer covering or casing: as

a (1) : a thermally nonconducting cover (2) : a covering that encloses an intermediate space through which a temperature-controlling fluid circulates (3) : a tough cold-worked metal casing that forms the outer shell of a built-up bullet

b (1) : a wrapper or open envelope for a document (2) : an envelope for enclosing registered mail during delivery from one post office to another

c (1) : a detachable protective cover for a book (2) : a paper or cardboard envelope for a phonograph record

— jack·et·less \-ləs\ adjective

Examples of JACKET

1. a suit with a double-breasted jacket
2. <slip the art book into its jacket so it won't get dirty>

Origin of JACKET

Middle English jaket, from Anglo-French jackés, plural, diminutive of Middle French jaque short jacket, from jacques peasant, from the name Jacques James

First Known Use: 15th century

Related to JACKET

Synonyms

armor, capsule, casing, cocoon, cover, covering, encasement, housing, hull, husk, ¹case, pod, sheath, shell

Related Words

cartridge, cassette (also casette); bark, crust; carapace, house, mail, panoply, plate, plating, shield; cuticle, hide, skin; envelope, package, wrapper; backing, coating, coverture, facing

Rhymes with JACKET

bracket, packet, placket, racket

²jacket

transitive verb

Definition of JACKET

: to put a jacket on : enclose in or with a jacket

First Known Use of JACKET

1856

Rhymes with JACKET

bracket, racket

jack·et

noun \ˈjak-ət\   (Medical Dictionary)

Medical Definition of JACKET

1

: a rigid covering that envelops the upper body and provides support, correction, or restraint

2

: jacket crown