or·​tho·​don·​tia | \ ˌȯr-thə-ˈdän(t)-sh(ē-)ə How to pronounce orthodontia (audio) \

Definition of orthodontia

2 : dental appliances (such as braces) used in orthodontic treatment

Examples of orthodontia in a Sentence

We took out a loan to pay for our son's orthodontia.

Recent Examples on the Web

In another case, an employee who approved credit card expenses ran up a tab for $150,000 on the company credit card, paying for her child’s college tuition and orthodontia work. Pauline Repard, San Diego Union-Tribune, "San Diego County DA offers new guide for reporting embezzlement," 11 Sep. 2019 There are still plenty of women who don’t have access to, can’t afford, or haven’t gotten orthodontia, which became a heated discussion this week when Gucci Beauty launched its new lipstick campaign. Alaina Leary, Glamour, "The Reaction to Gucci's Ad Doesn't Surprise Me—I Grew Up With 'Bad Teeth'," 9 May 2019 From diapers and daycare, orthodontia and summer camp, the costs of raising a kid add up. Liz Tracy, Glamour, "The Maternity Leave Mistake That Devastated My Family's Financial Situation," 11 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'orthodontia.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of orthodontia

circa 1849, in the meaning defined at sense 1

History and Etymology for orthodontia

New Latin

Keep scrolling for more

Learn More about orthodontia

Statistics for orthodontia

Last Updated

20 Sep 2019

Look-up Popularity

Time Traveler for orthodontia

The first known use of orthodontia was circa 1849

See more words from the same year

Keep scrolling for more

More Definitions for orthodontia



English Language Learners Definition of orthodontia

US, technical : treatment and devices used on teeth to make them grow straight


orth·​odon·​tia | \ ˌȯr-thə-ˈdän-ch(ē-)ə How to pronounce orthodontia (audio) \

Medical Definition of orthodontia

2 : dental appliances (as braces) used in orthodontic treatment

Comments on orthodontia

What made you want to look up orthodontia? Please tell us where you read or heard it (including the quote, if possible).


tired or exhausted

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!