Ridge of Tissue, E.g. Fold of Skin Beneath Tongue
Puzzle 5 of The Moon Hard Pack
Question is: Ridge of Tissue, E.g. Fold of Skin Beneath Tongue
and the answer is: FRENULUM
Word Meaning:
FRENULUM — (anatomy) A small fold or ridge of tissue that supports or restrains the motion of the part to which it is attached, in particular a fold of skin beneath the tongue, or between the lip and the gum.
Definitions from Wiktionary.