a chemotactic substance, identical with cAMP, secreted by myxamebas of cellular slime molds and attracting other myxamebas to aggregate and form a pseudoplasmodium.
a common measure of area: in the U.S. and U.K., 1 acre equals 4,840 square yards (4,047 square meters) or 0.405 hectare; 640 acres equals one square mile. acres. lands; land: wooded acres. Informal. large quantities: acres of Oriental rugs. Archaic. a plowed or sown field. a state in W Brazil. 58,900 sq. mi. (152,550 […]
a unit of volume of water in irrigation: the amount covering one acre to a depth of one foot, equal to 43,560 cubic feet. noun (pl) -feet the volume of water that would cover an area of 1 acre to a depth of 1 foot: equivalent to 43 560 cubic feet or 1233.5 cubic metres
one-twelfth of an acre-foot, equal to 3630 cubic feet. noun the volume of water that would cover an area of 1 acre to a depth of 1 inch; one twelfth of an acre-foot: equivalent to 3630 cubic feet or 102.8 cubic metres
- Acre right
the right of a settler to purchase land that the settler has occupied or improved.