Liddell–Scott–Jones: πτῆσις

πτῆσις,εως,ἡ, (πτῆναι)

A. flight, A. Pr. 488 , Arist. PA 639b2 , EN 1174a31 , Q.S. 12.5 (pl.): metaph. of rapid reading,ἡ περὶ τὴν ἀνάγνωσιν π. Lib. Ep. 949.2 .