See also: Caster


Casters on a chair (def. 2)

Alternative formsEdit


cast +‎ -er; the wheel sense comes from obsolete cast (to turn).



caster (plural casters)

  1. Someone or something that casts
    a caster of spells; a caster of stones; a caster of bronze statuary
  2. A wheeled assembly attached to a larger object at its base to facilitate rolling. A caster usually consists of a wheel (which may be plastic, a hard elastomer, or metal), an axle, a mounting provision (usually a stem, flange, or plate), and sometimes a swivel (which allows the caster to rotate for steering).
    Many office chairs roll on a set of casters.
  3. A shaker with a perforated top for sprinkling condiments such as sugar, salt, pepper, etc.
    a set of casters
  4. A stand to hold a set of shakers or cruets.
  5. (automotive) The angle of the axis around which a car's front wheels rotate when the steering wheel is turned, with a vertical axis being defined as zero caster.
    • 2008, Ronald G Haefner, The Car Care Book[1], →ISBN, page 238:
      In addition, caster helps to reduce steering effort and to return the steering wheel to the center position after a turn.

Derived termsEdit


See alsoEdit


caster (third-person singular simple present casters, present participle castering, simple past and past participle castered)

  1. To act as a caster