ἀντιδιαίρεσις
From LSJ
ἴσον ἔχουσαν πατρὶ μένος καὶ ἐπίφρονα βουλήν (Hesiod, Theogony 896) → equal to her father in strength and in wise understanding (on Athena necklace)
English (LSJ)
εως, ἡ, in Logic,
A division by dichotomy, Plot.4.4.28, 6.3.10, D.L.7.61, Iamb.Myst.1.15. II in Surgery, counterincision, Paul.Aeg.4.48.