Meanings
nounexotheca (plural exothecae)
plural exothecae
- biologyThe tissue that fills the interspaces between the costae of many madreporarian corals, usually consisting of small transverse or oblique septa.
Origin
From exo- + theca (“the calcareous wall of a corallite”).
Full word history & related roots →Cite this entry
APA
exotheca. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/exotheca
MLA
“exotheca.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/exotheca. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “exotheca,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/exotheca.
Source: exotheca on Wiktionary, CC BY-SA 4.0.