(ribbing and furrowing)

of a current that reverses direction at regular intervals; "alternating current"

current (AC) current in which the electrons reverse their direction regularly

Possession Rule: The possession arrow changes direction after each subsequent jump ball or held ball situation, alternating which team gets possession for the throw-in. The first possession after a held ball goes to the team who lost the opening jump ball to begin the game.

Alight showing different colors alternately [for example, an alternating green and white light would be noted on a chart as Al GW].

occurring by turns; first one and then the other; "alternating feelings of love and hate"

Two pump control logic to equalize the number of operating hours between two pumps by alternating each cycle of operation.