πτέρ-ωσις,εως,ἡ,
A. plumage, Ar. Av. 94 , 97 ;ἀπολαμβάνειν τὴν π., opp.πτερορρυεῖν, Arist. HA 564b2 , cf. 601b6 , PA 642b24 .
2. featheringof 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 .