aligner

noun

align·​er
ə-ˈlī-nər
: a clear, plastic orthodontic appliance that is molded to fit over the teeth and is used to correct their alignment
The aligners are made in a series: When the patient's teeth have been moved a tiny bit by one aligner, the next aligner goes in and moves them a bit further.Fred Reed, The Washington Times

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Cite this Entry

“Aligner.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/aligner. Accessed 23 Jul. 2024.

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