CURRENT

(1) The portion of a stream or body of water which is moving with a velocity much greater than the average of the rest of the water. The progress of the water is principally concentrated in the current. (2) The swiftest part of a stream; (3) A tidal or nontidal movement of lake or ocean water; (4) Flow marked by force or strength; (5) Currents of various types and names have been recognized: littoral, longshore, undertow, rip, density, convection, turbidity, eddies, stream.