ETYM as. pîpelian to blister; cf. Latin papula pimple.
A small inflamed elevation of the skin; a pustule or papule; common symptom in acne.
1. Petit objet rond. Bouton de culotte.
2. (Agriculture) Bourgeon. Bouton de rose.
3. (Médecine) Pustule. Bouton de fièvre.