intertidal
in ter ti dal |ˌintərˈtīdl ˌɪntərˈtaɪdl | ▶adjective Ecology of or denoting the area of a seashore that is covered at high tide and uncovered at low tide.
inter |tidal |ɪntəˈtʌɪd (ə )l | ▶adjective Ecology of or denoting the area of a seashore which is covered at high tide and uncovered at low tide.