νυγμός
From LSJ
τούτων γάρ ἑκάτερον κοινῷ ὀνόματι προσαγορεύεται ζῷον, καί ὁ λόγος δέ τῆς οὐσίας ὁ αὐτός → and these are univocally so named, inasmuch as not only the name, but also the definition, is the same in both cases (Aristotle, Categoriae 1a8-10)
English (LSJ)
ὁ,
A pricking sensation, irritation, Ruf. ap. Orib.8.24.62 : in pl., of gout, Luc.Ocyp.30. II metaph., of the prickings of conscience, τῶν παρανομημάτων ν. εἰς τὴν ψυχὴν λαμβάνειν D.S.13.58 ; but also, = νύγμα II, ὑπὸ νυγμῶν καὶ γαργαλισμῶν τῆς αἰσθήσεως Plu.Phil.9.