(tributaries)
A ~ is a stream or river that flows into a larger one.
...the Napo river, a ~ of the Amazon.
N-COUNT: oft N n
(tributaries)
A ~ is a stream or river that flows into a larger one.
...the Napo river, a ~ of the Amazon.
N-COUNT: oft N n
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012