In Louisiana. A marine term used to denote a bottom of sand, stone, or rock mixed together and rising towards the surface of the water; an elevation of the bed of a river under the surface of the water, since it is rising towards it; sometimes, however, used to denote the same elevation of the bank when it has risen above the surface of the water, or is as high as the land on the outside of the bank. In this latter sense it is synonymous with “alluvion.” It means, in common-law language, land formed by accretion. Morgan v. Livingston, 6 Mart. (O. S.) (La.) Ill; Hollingsworth v. Chaffe, 33 La. Ann. 551; New Orleans v. Morris, 3 Woods 117, Fed. Cas. No. 10,183; Leonard v. Baton Rouge, 39 La. Ann. 275, 4 South. 243.