Dictionary Definition:
Nakhaka (adj.) belonging to, consisting of or resembling a claw, in hatthi˚ like elephants' claws, Ep. of a castle (pāsāda) Vin ii.169 (Bdhgh on p. 323: hatthikumbhe patiṭṭhitaŋ, evaŋ evaŋkatassa kir' etaŋ nāmaŋ) (?).