Ĕp'i-nyc'tis, n.

n.; pl. EP'I-NYC'TI-DĒS. [Gr. ἐπινυκτίς, from ἐπί and νύξ, νυκτός, night; Lat. epinyctis, Fr. épinyctide.] (Med.) A pustule, so called because appearing first or only at night, or as being especially troublesome at night. Hoblyn.