[ foh-tuh-gram-i-tree ]
/ ˌfoʊ təˈgræm ɪ tri /


the process of making surveys and maps through the use of photographs, especially aerial photographs.

Origin of photogrammetry

First recorded in 1870–75; photo- + -gram1 + -metry

Related forms

pho·to·gram·met·ric [foh-toh-gruh-me-trik] /ˌfoʊ toʊ grəˈmɛ trɪk/, pho·to·gram·met·ri·cal, adjectivepho·to·gram·met·ri·cal·ly, adverbpho·to·gram·me·trist, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for photogrammetry


/ (ˌfəʊtəʊˈɡræmɪtrɪ) /


the process of making measurements from photographs, used esp in the construction of maps from aerial photographs and also in military intelligence, medical and industrial research, etc

Derived Forms

photogrammetric (ˌfəʊtəʊɡrəˈmɛtrɪk), adjectivephotogrammetrist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012