trimetrogon

English

Etymology

tri- +‎ metrogon

Noun

trimetrogon (plural trimetrogons)

1. A single assembly of three cameras at differing angles, used for aerial photographic surveys.
2. An image produced by this means.
   • 1993, Malcolm Mellor, chapter 1, in Notes on Antarctic Aviation‎^[1], US Army Corps of Engineers Cold Regions Research & Engineering Laboratory, page 8:

     [H]igh-quality trimetragon photography was acquired for much of Antarctica, permitting detailed and accurate mapping[.]