lant /lænt/noun 2verb 1forms 3 noun2 •Aged urine, historically used by the Anglo-Saxons and others as fertilizer for high nitrogen content. •Any of several species of slender marine fishes of the genus Ammodytes, including the common European species (Ammodytes tobianus) and the American species (Ammodytes americanus). verb1 •(no longer used) To flavor (ale) with aged urine. formslanted · lanting · lants