arc triangulation

arc triangulation

[′ärk ‚tri‚aŋ·gyə′lā·shən]
(engineering)
A system of triangulation in which an arc of a great circle on the surface of the earth is followed in order to tie in two distant points.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.