A
dunam (; ), also known as a
donum or
dunum and as the
old,
Turkish, or
Ottoman stremma, was the
Ottoman unit of
area equivalent to the
Greek stremma or
English acre, representing the amount of land that could be ploughed by a team of
oxen in a day. The legal definition was "forty standard
paces in length and breadth", but its actual area varied considerably from place to place, from a little more than 900 m² in
Palestine to around 2500 m² in
Iraq.