An artificial channel or ditch designed to catch and collect water from rainfall or streams for use in irrigation or water supply.
From 'catch' + 'water,' a descriptive compound that literally names what the structure does. Common in agricultural and engineering contexts from the 18th century onward.
In arid regions, catchwater systems were the difference between thriving farms and failed settlements—ingenious networks of channels that captured every drop of rain. Some ancient Roman and Islamic engineering catchwater systems still function today.
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