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periodontium

American

[per-ee-uh-don-shuhm, -shee-uhm] / ˌpɛr i əˈdɒn ʃəm, -ʃi əm /

noun

the bone, connective tissue, and gum surrounding and supporting a tooth.

Other Word Forms

Inflected Forms

noun

periodontia

plural

Etymology

Origin of periodontium

From New Latin, dating back to 1955–60; see origin at peri-, -odont, -ium

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.