hydrography hydrographically • hydrogymnastics · · · Info · Definitions · Characters · · hydrography · · Text Latin · · Script 11 · · Length 4 · · Syllables Definitions · · · (noun) the science of the measurement and description and mapping of the surface waters of the earth with special reference to navigation. · · Noun Definition 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 g latin small letter g U+0067 h latin small letter h U+0068 o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 y latin small letter y U+0079