noun tri·met·ro·gon \trīˈme‧trəˌgän\

Definition of trimetrogon



  1. :  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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Origin and Etymology of trimetrogon

tri- + Greek metron measure + English -gon

Seen and Heard

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a rounded knoll or a ridge of ice

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