noun
rapids; torrent; fast-flowing river
A relatively uncommon or literary noun for a steep, violently flowing stream or rapids, literally suggestive of a river flowing like a waterfall. In everyday wording, 急流 or 早瀬 is usually clearer.
「滝川」は、滝のように激しく流れる川や急流を指す語だ。
滝川 is a word for a river or rapid current flowing violently like a waterfall.