theca

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theca

/ˈθiːkə/

Where it comes from

From New Latin, from Latin thēca, from Ancient Greek θήκη (thḗkē, “a case, box, receptacle”), from τίθημι (títhēmi, “put, set, place”). Doublet of tay.

noun thecas · thecae

The pollen-producing organ usually found in pairs and forming an anther.
The theca folliculi: the twin layers of cells surrounding the basal lamina of an ovarian follicle.
The thecal sac: the portion of the dura mater that surrounds the spinal cord and the cauda equina.
The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates.
The calcareous wall of a corallite, the exoskeleton of a coral polyp.
A sporangium: a spore case.
A case for the corporal cloth used in the Eucharist.

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MLA

"theca." Wiktionary, via Micwyn, micwyn.com/word/theca. Accessed 6 Nov. 2026.

APA

theca. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/theca

Chicago

"theca." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/theca.

BibTeX

@misc{theca_2026,
  title = {theca},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/theca},
  urldate = {2026-11-06}
}