azimuthal

adj

1. (not-comparable)Of or pertaining to the azimuth; in a horizontal circle.
2. (not-comparable)Describing a map projection which preserves direction for all points relative to a selected point (or in some cases two points).

noun

1. An azimuthal projection.

   “Note that because of the square-well air-bag model, these synchrotron azimuthals are slightly different from the conventional ones.”