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“frenula”
frenulum (s), frenula (pl)
1. A small stiff bristle on the hind wing of moths that keeps the forewings and hind wings together during flight.
2. A small fold of skin, or membrane, that limits the movement of an organ, typically smaller than a frenum.
2. A small fold of skin, or membrane, that limits the movement of an organ, typically smaller than a frenum.