A.a subject of scientific inquiry or a philosophic treatise, “ἐν τοῖς ἐγκυκλίοις φ.” Arist.Cael.279a30; of the poems of Homer as allegorized, Plb.34.4.4.
2. in Logic, demonstration, “ἔστι φ. συλλογισμὸς ἀποδεικτικός” Arist.Top. 162a15.
3. philosophic principle, rule of conduct, Plu.2.1125b, Gal. Anim.Pass.1.3.
4. shrewd device or invention, Plu.2.269b.