πυκνότης

A. closeness, thickness, denseness, solidity, [νεφελῶν] Ar. Nu. 384,406; [χρυσοῦ] Pl. Ti. 59b; π. ἡ κάτω Epicur. Nat. 11.10; π. νοητή Phld. D. 3.11; of flesh, opp. μανότης, Hp. VM 22, Arist. EN 1129a23, etc.; opp. ἀραιότης, Id. Ph. 260b10 (pl.); ἡ π. τῆς ξυγκλῄσεως Th. 5.71.

2. Medic., π. κοιλίης costiveness, Hp. Epid. 6.3.1.

3. closer spacing of notes in music, opp. μανότης, Pl. Lg. 812d.

4. in Tactics, close formation of the phalanx, Arr. Tact. 11.1, 12.11; ἡ συνέχεια καὶ π.τῶν Ῥωμαίων Plu. Crass. 24.

II. frequency, μεταβολῶν Isoc. 4.116; μέγεθος καὶ πλῆθος καὶ πυκνότητες [λυπῶν] Pl. Lg. 734a; ἡ π. τῶν ἐννοιῶν Hermog. Id. 2.10 (pl.), Longin. ap. Porph. Plot. 19, cf. Arist. SE 175b34.

III. metaph., sagacity, shrewdness, π. ἔνεστ’ ἐν τῷ τρόπῳ Ar. Eq. 1132 (lyr.); πιθανότης καὶ π. τοῦ ἀνδρός Plu. TG 15.