λογῐκ-ός · logik-os — LSJ
of or for speaking or speech, μέρη λ. the organs of speech, Plu. Cor. 38: λογική, ἡ, speech, opp. μουσική, D.H. Comp. 11; λ. φαντασία expressed in speech, Stoic. 2.61.
of or in eloquence, ἀγῶνες Philostr. VS 1.22.1; ἀκροάσεις λ. καὶ ὀργανικαί Supp.Epigr. 2.184.6 (Tanagra, ii B.C.).
suited for prose, ὁ ἡρῷος σεμνὸς καὶ οὐ λ. Demetr. Eloc. 42; τὸ λ., opp. τὸ μεγαλοπρεπές, ib. 41; of persons, writing in prose, D.L. 5.85; ἐγκώμιον λ. in prose, IG 9(2).531.43 (Thess.).
possessed of reason, intellectual, μέρος Ti.Locr. 99e, al.; τὸ λ. ζῷον Chrysipp.Stoic. 3.95; ἀρεταὶ λ., = διανοητικαί, opp. ἠθικαί, Arist. EN 1108b9.
dialectical, argumentative, οἱ λ. διάλογοι of Plato, such as the Theaetetus and Cratylus, D.L. 3.58; in Arist. usu. like διαλεκτικός, λ. συλλογισμός APo. 93a15, cf. Top. 162b27; διὰ λογικωτέρων καὶ ἀκριβεστέρων λόγων more abstract, Metaph. 1080a10; λ. δυσχέρειαι ib. 1005b22; λ. ἀπόδειξις GA 747b28; but also, logical, λ. συλλογισμοί, opp. ῥητορικοί, Rh. 1355a13. Adv. -κῶς dialectically, Metaph. 1029b13, APo. 84a7, 88a19; φυσικῶς καὶ λ. GC 316a11: Comp. -ώτερον Cael. 275b12.
Subst., ἡ λογική (sc. τέχνη) logic, Cic. Fin. 1.7.22; also τὰ λογικά Id. Tusc. 4.14.33; περὶ λογικῶν title of work, Democr. 10b; τὸ λ., opp. τὸ φυσικόν, τὸ ἠθικόν, Zeno Stoic. 1.15, etc.
of the ‘dogmatic’ school of physicians, ἡ λ. αἵρεσις Gal. Sect.Intr. 1.