From MapHist.com - Glossary of Terms for historical maps

Glossary of Terms
Azimuth
By Pierre Joppen
Jul 7, 2004, 08:44

From the Arabic, "al-samt" meaning the way, the direction or the arc. A horizontal angle of direction calculated clockwise from the meridian plane. Azimuthal compass direction is expressed in terms of all 360° of a circle. The term can also be called magnetic azimuth, when calculated using the North or South magnetic poles.

This Article was published on MapHist.com - http://www.MapHist.com