Az"i*muth`al (&?;), a. Of or pertaining to the azimuth; in a horizontal circle. Azimuthal error of a transit instrument, its deviation in azimuth from the plane of the meridian.
Az"i*muth`al (&?;), a. Of or pertaining to the azimuth; in a horizontal circle.
Azimuthal error of a transit instrument, its deviation in azimuth from the plane of the meridian.