1. A process by which a river or stream shifts its location, causing the recession of water from its bank. [Cases: Navigable Waters 44; Waters and Water Courses 93. C.J.S. Navigable Waters § 94; Waters§§ 177–182, 184–185.]
2. The alteration of a boundary line because of the gradual removal of land by a river or stream. See ACCRETION; DERELICTION(2). [Cases: Navigable Waters 44; Waters and Water Courses 93. C.J.S. Navigable Waters § 94; Waters §§ 177–182, 184–185.]