Crossword clues for hydrography
The Collaborative International Dictionary
Hydrography \Hy*drog"ra*phy\, n. [Hydro-, 1 + -graphy: cf. F. hydrographie.]
The art of measuring and describing the sea, lakes, rivers, and other waters, with their phenomena.
That branch of surveying which embraces the determination of the contour of the bottom of a harbor or other sheet of water, the depth of soundings, the position of channels and shoals, with the construction of charts exhibiting these particulars.
Douglas Harper's Etymology Dictionary
Wiktionary
n. (context nautical English) The scientific measurement and description of the physical features and conditions of navigable waters and the shoreline.
WordNet
n. the science of the measurement and description and mapping of the surface waters of the earth with special reference to navigation
Wikipedia
Hydrography is the branch of applied sciences which deals with the measurement and description of the physical features of oceans, seas, coastal areas, lakes and rivers, as well as with the prediction of their change over time, for the primary purpose of safety of navigation and in support of all other marine activities, including economic development, security and defence, scientific research, and environmental protection.
Usage examples of "hydrography".
He is, as you say, very much your friend and he did throw out some confused remarks about the possibility of a commissionership or even some civilian employment, conceivably to do with hydrography.