— photogrammetric /foh'toh greuh me"trik/ , photogrammetrical , adj. — photogrammetrically , adv. — photogrammetrist , n.
/foh'teuh gram"i tree/ , n.
the process of making surveys and maps through the use of photographs, esp. aerial photographs.
[ 1870-75; PHOTO- + -GRAM 1 + -METRY ]