teeth-ridge

teethridge

[teeth-rij]
noun Phonetics.

Origin:
1925–30; teeth + ridge

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

teethridge teeth·ridge (tēth'rĭj')
n.
The ridge of gum behind the upper front teeth.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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