■ noun ( plural acre-feet ) a unit of volume equal to the volume of a sheet of water one acre (0.405 hectare) in area and one foot (30.48 cm) in depth; 43,560 cubic feet (1233.5 cubic metres).
ACRE-FOOT
Meaning of ACRE-FOOT in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004