Definition of "hydrologically" [hydrologically]

• With reference to hydrology (adverb)

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• "Specifically, with their purposefully programmed failures — Landscape as a water-guzzling lawn in hydrologically-challenged California; Architecture positioned in a gas-guzzling solar orientation — the two have conspired to create dazzling arabesque parterres."
• "The watershed is thus defined hydrologically, that is, by the specific river or stream."
• "Meanwhile, in New York State alone, thousands of small but hydrologically significant wetlands are vulnerable without clear federal or state protection, yet many are of major importance to New York City's drinking water supplies."