τριαδικός

τρῐᾰδ-ῐκός, ή, όν,

• of three, ἀριθμός Syrian. in Metaph. 126.22; triadic, pertaining to a triad, Dam. Pr. 57, 117, Procl. in Prm. p.602 S.; τ. τῶν κόσμων τομή (of Proclus) Simp. in Ph. 617.22.
• • II in Metric, consisting of three περίοδοι, Heph. p.61 C.; τ. συζυγία Sch. Ar. Pax 1127.