moving in surges and billows and rolls; "billowing smoke from burning houses"; "the rolling fog"; "the rolling sea"; "the tumbling water of the rapids"
abnormally expanded or increased in size; (`swollen' is sometimes used in combination); "distended wineskins"; "the need to clean out swollen inventories"; "the raisins were plump and soft and swollen from being soaked"; "huge blood-swollen mosquitoes"
marked by repeated turns and bends; "a tortuous road up the mountain"; "winding roads are full of surprises"; "had to steer the car down a twisty track"