cyclothem

== English == === Etymology === From cyclo- +‎ Ancient Greek θέμα (théma, “a deposit”). Coined by American scientists Harold R. Wanless and J. Marvin Weller in 1932. === Noun === cyclothem (plural cyclothems) (geology) A vertical stratigraphic sequence caused by repeated flooding by the sea ==== Derived terms ==== megacyclothem cyclothemic === References ===