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Acraldehyde

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• Acrania

  acrania acrania a·cra·ni·a (ā-krā’nē-ə, ə-krā’-) n. Congenital absence of all or a part of the skull. a·cra’ni·al adj. Historical Examples Hence we may call it after the acrania as well as after the Tangles. The History of Creation, Vol. II (of 2) Ernst Haeckel It is absent as a distinct gland in the acrania and […]

• Acrasin

  a chemotactic substance, identical with cAMP, secreted by myxamebas of cellular slime molds and attracting other myxamebas to aggregate and form a pseudoplasmodium.

• Acre

  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 […]

• Acre-foot

  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

• Acre-inch

  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

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