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trimetrogon

noun
tri·​met·​ro·​gon | \ trīˈme‧trəˌgän\
plural -s

Definition of trimetrogon

: a system of aerial mapping involving the use of a single assembly containing three cameras with which one vertical and two oblique right and left aerial photographs are taken simultaneously at regular intervals over the area being mapped

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History and Etymology for trimetrogon

tri- + Greek metron measure + English -gon

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