1. a branch of a river that leaves the main stream and rejoins it downstream, forming an island.
Usage: chiefly Australian and geographical contexts

Examples

• The river splits into several anabranches as it flows through the delta.
• During the dry season, water levels in the anabranch dropped significantly.
• The anabranch created a fertile island between the two channels.
• Boaters navigated the anabranch to avoid the main current.
• The anabranch eventually merged back with the primary river course.