The Groove Between One's Nose and Upper Lip

This page is the CodyCross answer for the clue below from Space Exploration, Group 904, Puzzle 1 (The Milky Way).

Question is: The Groove Between One's Nose and Upper Lip

and the answer is: PHILTRUM

Word Meaning:

PHILTRUM — (anatomy) The shallow vertical groove running from the nasal septum to the center of the upper lip.

Definitions from Wiktionary.