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| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| the offspring of a zebra and a donkey. |
| hydrography (haɪˈdrɒɡrəfɪ) | |
| —n | |
| 1. | Compare hydrology the study, surveying, and mapping of the oceans, seas, and rivers |
| 2. | the oceans, seas, and rivers as represented on a chart |
| hy'drographer | |
| —n | |
hydrography (hī-drŏg'rə-fē) Pronunciation Key
|
hydrography
the art and science of compiling and producing charts, or maps, of water-covered areas of the Earth's surface. A brief treatment of hydrography follows. For full treatment, see map and surveying: Hydrography.
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