Definition of illegal sometimes disparaging + offensive : a person who enters or lives in a country without the documentation required for legal entry or residence
aerial noun [C]. âº a âstructure made of âmetal ârods or âwires that âreceives or âsends out âradio or âtelevision âsignals.
Aerial photographs are vital to any study of local environmental conditions and they are used in many different ways, depending on the type of photograph used, the angle the photographs are taken at, and the elevation of the vehicle used to take them.