Meaning of supratidal in English:
supratidal
Pronunciation /ˌsuːprəˈtʌɪdl/ /ˌsjuːprəˈtʌɪdl/
adjective
Ecology
Situated immediately above the limit of high tides; inhabiting or found in such an area.
Origin
Early 20th century; earliest use found in Proceedings of the Royal Society of Edinburgh.