Hydrology

[haɪ'drɒlədʒɪ] or [haɪ'drɑlədʒi]

(noun.) the branch of geology that studies water on the earth and in the atmosphere: its distribution and uses and conservation.

校對:塞勒斯特--From WordNet

(n.) The science of water, its properties, phenomena, and distribution over the earth's surface.

艾玛手打

n. the science which treats of water.—adjs. Hydrolog′ic -al.—n. Hydrol′ogist.

格雷西校對