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positioner

American  
[puh-zish-uh-ner] / pəˈzɪʃ ə nər /

noun

  1. a person or thing that positions.

  2. Orthodontics. a removable device of resilient plastic material worn in the mouth usually during sleep to produce minor adjustments in the position of teeth after straightening appliances have been taken off.

Etymology

Origin of positioner

First recorded in 1930–35; position + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Mothercare had been selling a sleep positioner for £39.99 but has told the BBC it is no longer for sale.

From BBC • Oct. 5, 2017

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.