A1E1R1O1P3A1U1S1E1
11 points
AEROPAUSE is validvalid
the region of the atmosphere above which aircraft cannot fly [n AEROPAUSES]
the region of the earth's atmosphere above which aircraft cannot fly [n -S]
the region of the atmosphere above which aircraft cannot fly [n AEROPAUSES]
the region of the earth's atmosphere above which aircraft cannot fly [n -S]