(a.) Outward bound.

affluent bayou billabong branch confluent confluent stream dejecta dejection dejecture dendritic drainage pattern discharge effused effusive egesta ejecta ejectamenta ejection excrement excreta excretes extravasate extravasated extravasation exudate exudation feeder fork outbound outflowing outgoing outpouring outward-bound prong transudate transudation tributary waste waste matter