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retainer

1
[ ri-tey-ner ]
/ rɪˈteɪ nər /
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See synonyms for: retainer / retainers on Thesaurus.com

noun
a person or thing that retains.
a servant or attendant who has served a family for many years.
Also called cage, separator. Machinery. a ring separating, and moving with, balls or rollers in a bearing.
Orthodontics.
  1. a fixed or removable device worn in the mouth to hold the teeth in their new position during the adaptive period after straightening appliances have been removed.
  2. Prosthodontics. a part on a bridge or the like by which the bridge is attached to the natural teeth.
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Origin of retainer

1
First recorded in 1530–40; retain + -er1

OTHER WORDS FROM retainer

re·tain·er·ship, noun

Other definitions for retainer (2 of 2)

retainer2
[ ri-tey-ner ]
/ rɪˈteɪ nər /

noun
the act of retaining in one's service.
the fact of being so retained.
a fee paid to secure services, as of a lawyer.

Origin of retainer

2
1425–75; late Middle English reteinir, probably noun use of Middle French retenir to retain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use retainer in a sentence

British Dictionary definitions for retainer

retainer
/ (rɪˈteɪnə) /

noun
history a supporter or dependant of a person of rank, esp a soldier
a servant, esp one who has been with a family for a long time
a clip, frame, or similar device that prevents a part of a machine, engine, etc, from moving
a dental appliance for holding a loose tooth or prosthetic device in position
a fee paid in advance to secure first option on the services of a barrister, jockey, etc
a reduced rent paid for a flat, room, etc, during absence to reserve it for future use
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for retainer

retainer
[ rĭ-tānər ]

n.
One that retains, as a device, frame, or groove that restrains or guides, especially for a prosthesis.
An appliance used to hold teeth in position after orthodontic treatment.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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