Meanings
nouncyclothem (plural cyclothems)
plural cyclothems
- geographyA vertical stratigraphic sequence caused by repeated flooding by the sea
Origin
From cyclo- + Ancient Greek θέμα (théma, “a deposit”). Coined by American scientists Harold R. Wanless and J. Marvin Weller in 1932.
Full word history & related roots →Cite this entry
APA
cyclothem. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/cyclothem
MLA
“cyclothem.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cyclothem. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “cyclothem,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/cyclothem.
Source: cyclothem on Wiktionary, CC BY-SA 4.0.