almud noun3 •(historical) A traditional Spanish and Portuguese unit of dry measure or volume, highly variable by region and substance but often equivalent to about 4.6 liters (one celemin).An almud is a measure of volume rather than weight; an almud of wheat equals about 22 pounds and an almud of potatoes 20 pounds. — 1990 •(historical) A traditional unit of land area, nominally the amount of land that could be sown with one almud of seed. •(historical) A low, wide box used as a physical measure for this unit. formsalmuds