theca
noun/ˈθiːkə/
Etymology From New Latin, from Latin thēca, from Ancient Greek θήκη (thḗkē, “a case, box, receptacle”), from τίθημι (títhēmi, “put, set, place”). Doublet of tay.
7 senses
- 1The pollen-producing organ usually found in pairs and…
- 2The theca folliculi: the twin layers of cells…
- 3The thecal sac: the portion of the dura mater that…
- 4The membrane complex enveloping the cells of certain…
- 5The calcareous wall of a corallite, the exoskeleton of a…
- 6A sporangium: a spore case.
- 7A case for the corporal cloth used in the Eucharist.
› Any of several external cases or sheaths.
4
Biology, Botany, Microbiology, Natural sciences, Planktology The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates.
5
Biology, Natural sciences The calcareous wall of a corallite, the exoskeleton of a coral polyp.
6
Biology, Microbiology, Mycology, Natural sciences A sporangium: a spore case.
7
Christianity A case for the corporal cloth used in the Eucharist.
- Derived terms
32 terms
endotheca, endothecium, epitheca, exotheca, exothecium, extrathecal, gnathotheca, gonotheca, hydrotheca, hypotheca, intrathecal, karyotheca, mesotheca, ootheca, oötheca, podotheca, rhinotheca, sarcotheca, spermatheca, spermatotheca, theca cordis, theca externa, theca folliculi, theca interna, thecal, thecaphore, thecasporous, thecate, theciferous, theciform, thecitis, thecoma- Related terms
- intrathecally, thecium