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philtrum

American  
[fil-truhm] / ˈfɪl trəm /

noun

plural

philtra

  1. Anatomy. the vertical groove on the surface of the upper lip, below the septum of the nose.

  2. a philter.

philtrum British  
/ ˈfɪltrəm /

noun

  1. the indentation above the upper lip

"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

Etymology

Origin of philtrum

1600–10; < Latin: love philter < Greek phíltron love philter, dimple in upper lip. See phil-, -tron

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.