τρόχισκος

A. small wheel or circle, Arist. Mech. 848a25, Apollod. Poliorc. 155.9.
2. troche or trochisk, of honey, Arist. Mir. 831b27; of soap, medicine, etc., Thphr. HP 9.9.3, Antyll. ap. Orib. 10.24.1, Sor. 2.41, Gal. 12.276.
3. ear-ring, LXX Ez. 16.12.
4. a metal ball, let fall to mark time, Lyd. Mag. 2.16.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project