Henry George Liddell, Robert Scott, A Greek-English Lexicon

A.of the solstice, ὁ τ. (sc. κύκλος) the tropic or solstice as marked on the sphere, Arist.Mete.343a14 (with κύκλος, Jul.Or.4.147c); τ. χειμερινός, θερινός, Porph.Antr.21; “ζῶναι” Placit.3.11.4; οἱ τ. (sc. κύκλοι) Arist.Mete.345a6, 346a14, al., cf. Arat. 528, Plu.2.429f; τὰ τ. ζῴδια the signs of the zodiac in which the solstices and the equinoxes are situated, S.E.M.5.6; so “τ. ζῷα” Man.2.382; and abs., “τροπικά” Id.3.41, 6.359; but used of Cancer and Capricorn only, opp. ἰσημερινά (Aries and Libra), Ptol.Tetr.31, etc.

2. of Time, of or at the solstice, αἱ τ. ἡμέραι, οἱ τ. μῆνες, Arist.HA 544a33, 558b14.

II. Rhet., tropical, figurative, τ. λέξις a figurative expression, D.H.Th.23, etc.; “τὸ ποιητικὸν καὶ τ.” Phld.Rh.1.157 S.; “αἱ τ.” tropes, Longin.32.6. Adv. “-κῶς” Phld.Rh.1.154 S., Ath.3.76c.

2. in Stoic Logic τροπικόν = συνημμένον ἢ διεζευγμένον ἀξίωμα (v. “συνάπτω” A. 111.3, “διαζεύγνυμι” 1), Stoic.2.77, al., Arr Epict.1.29.40.