πτέρωσις
εως, ἡ
A.
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 11) Jul. Ep. 193.