cantarro, n. [It. cantaro (in sense 1), Sp. cantaro (in sense 2).].
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A weight used in southern Europe and East for heavy articles. It varies in different localities; thus, at Rome it is nearly 75 pounds, in Sardinia nearly 94 pounds, in Cairo it is 95 pounds, in Syria about 503 pounds. [1913 Webster]
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A liquid measure in Spain, ranging from two and a half to four gallons. Simmonds. [1913 Webster]