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[fil-truh m] /ˈfɪl trəm/
noun, plural philtra
[fil-truh] /ˈfɪl trə/ (Show IPA)
Anatomy. the vertical groove on the surface of the upper lip, below the septum of the nose.
a philter.
Origin of philtrum
1600-10; < Latin: love philter < Greek phíltron love philter, dimple in upper lip. See phil-, -tron Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for philtra


noun (pl) philtra
the indentation above the upper lip
Word Origin
C17: from Latin, see philtre
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for philtra



dimple in the middle of the upper lip, 1703, medical Latin, from Greek philtron, literally "love charm" (see philtre).

Online Etymology Dictionary, © 2010 Douglas Harper
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philtra in Medicine

philtrum phil·trum (fĭl'trəm)
n. pl. phil·tra (-trə)
The vertical indentation in the midline of the upper lip. Also called infranasal depression.

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