baby tooth


Definition of baby tooth

: a temporary tooth of a young mammal that in human dentition includes four incisors, two canines, and four molars in each jaw : milk tooth, deciduous tooth If one of my sisters or brothers or I lost a baby tooth, we always put it in an envelope under our pillow.— Ian Frazier By the time a dog is about a year old, the baby teeth will have been gradually replaced by 42 permanent teeth …— Tom Ewing

Examples of baby tooth in a Sentence

Recent Examples on the Web The cross-section of an exfoliated incisor baby tooth mounted to a holder for analysis at Dr. Erin Dunn’s office. Globe Staff,, 7 Mar. 2022 Humans had been living in Australia for at least 10,000 years before the Grotte Mandrin child dropped its baby tooth. Kiona N. Smith, Ars Technica, 21 Feb. 2022 An ancient baby tooth found in a cave in France shows modern humans arrived in western Europe almost 10,000 years earlier than previously thought. Margaret Osborne, Smithsonian Magazine, 11 Feb. 2022 The clearest evidence is a single baby tooth from a modern human child, aged between 2 and 6, that was found in a layer of clay and sand sediments on the floor of the cave. Tom Metcalfe, NBC News, 9 Feb. 2022 According to State Police Detective Sergeant Scott Jarvis, the agency collected DNA samples from the family, along with a DNA sample from a baby tooth belonging to Denise. Andrea Cavallier, NBC News, 6 Mar. 2020 The opossum, who is less than a year old, weighs two pounds and still has her baby teeth. Alaa Elassar, CNN, 12 Jan. 2020 Most baby teeth are discarded, as are permanent teeth that are pulled during orthodontic or other dental procedures., 18 Dec. 2019 Friends and family, your one-of-a-kind gift-giving only needs a bit of the mom's breast milk, baby's hair or a first lost baby tooth. Sonja Haller, USA TODAY, 19 Nov. 2019 See More

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

First Known Use of baby tooth

1834, in the meaning defined above

Buying Guide

Our Reviews team has selected the best baby bottles.

Learn More About baby tooth

Time Traveler for baby tooth

Time Traveler

The first known use of baby tooth was in 1834

See more words from the same year

Dictionary Entries Near baby tooth

baby talk

baby tooth

baby walker

See More Nearby Entries 

Statistics for baby tooth

Cite this Entry

“Baby tooth.” Dictionary, Merriam-Webster, Accessed 21 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More Definitions for baby tooth

baby tooth


Kids Definition of baby tooth

baby tooth


Medical Definition of baby tooth

More from Merriam-Webster on baby tooth

Nglish: Translation of baby tooth for Spanish Speakers


Test Your Vocabulary

Name That Color

  • a light greenish blue color
  • Name that color:
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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