papula

‖n.; pl. Papulæ [ L. ] [ 1913 Webster ]

1. (Med.) A pimple; a small, usually conical, elevation of the cuticle, produced by congestion, accumulated secretion, or hypertrophy of tissue; a papule. Quain. [ 1913 Webster ]

2. (Zool.) One of the numerous small hollow processes of the integument between the plates of starfishes. [ 1913 Webster ]