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Definition of Philtrum
1. Noun. The shallow groove running down the center of the outer surface of the upper lip. ¹
¹ Source: wiktionary.com
Definition of Philtrum
1. the indentation between the upper lip and the nose [n -TRA]
Medical Definition of Philtrum
1. The area from below the nose to the upper lip. Normally the philtrum is grooved. In foetal alcohol syndrome, the philtrum is flat. (12 Dec 1998)
Lexicographical Neighbors of Philtrum
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