πτέρωσις

πτέρ-ωσις, εως, ἡ,

• plumage, Ar. Av. 94, 97; ἀπολαμβάνειν τὴν π., opp. πτερορρυεῖν, Arist. HA 564b2, cf. 601b6, PA 642b24.
• • • 2 feathering of arrows, Aen. Tact. 31.27.
    • 3 pl., names of parts of surgical machines, Orib. 49.4.9, al.
  • II metaph., λόγων πτέρωσις (cf. πτερόεις II) Jul. Ep. 193.