τρίχρονος

A. of three times:

1. in Prosody, of three short syllables, or (as an equivalent) of one short and one long, Heph. 3.1, A.D. Synt. 133.27: metaph. of rhythm of pulse, Ruf. Syn. Puls. 4.4.

2. Medic., passing through three stages, Sor. 1.46.

3. Gramm., in three tenses, Herophil. ap. Gal. 17(2).480.