潮しお間ましおまMeanings1nounebb tideRefers to the period when the tide is going out; a somewhat technical or literary term. In everyday speech, 引き潮 (ひきしお) is more common.潮しお間まには、磯いその生いき物ものを観かん察さつしやすい。During the ebb tide, it's easy to observe creatures on the rocky shore.