πλᾶκτρον

A. anything to strike with:

1. instrument for striking the lyre, plectrum, χρυσέου ὑπὸ π. h.Ap. 185, cf. h.Merc. 53, Pi. N. 5.24, E. HF 351 (lyr.); κεράτινα π. Pl. Lg. 795a; π . . . ξύλινον IG 22.1388.80; κρούειν τῷ π. Pl. Ly. 209b; π. ἐς λύρην ῥάψαι Herod. 6.51; πλήκτρῳ . . πληγῶν γιγνομένων Pl. R. 531 b.

2. spear-point, δορὸς διχόστομον π. S. Fr. 152 (lyr.); διόβολον π., of lightning, E. Alc. 129 (lyr.); a bee's sting, Jul. Or. 2.90a.

3. cock's spur, Ar. Av. 759, 1365, Arist. HA 504b7, PA 694a13; also, spur of crayfish, ὥσπερ π. Id. HA 526a5; an analogous bone of the ankle, ib.516b2; part of the thigh-joint, Poll. 2.185, Hsch.

4. = πηδάλιον, Hdt. 1.194, S. Fr. 143.

5. goad, E. Rh. 766.

6. = γλῶσσα, Poll. 2.104.