A misspelling or variant spelling of aqueduct; a channel or artificial conduit for carrying water, typically over long distances.
From Latin 'aqua' (water) + 'ducere' (to lead), though this spelling with 'aquaduct' is non-standard; 'aqueduct' is the correct form established since the 16th century.
This spelling error is interesting because it shows how people logically assume 'aqua-' compounds follow a pattern—but 'aqueduct' comes from a different Latin construction that makes 'aquaduct' look wrong, even though it's phonetically identical!
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