hypsography
noun
hyp·sog·ra·phy
hipˈsägrəfē
plural -es
1
: a branch of geography that deals with the measurement and mapping of the varying elevations of the earth's surface with reference to sea level
2
: topographic relief or the devices (as color shadings) by which it is indicated on maps
Love words? Need even more definitions?
Merriam-Webster unabridged
Share