Theca
Origin
From New Latin, from Latin theca, from Ancient Greek θήκη (thēkē, "a case, box, receptacle"), from τίθημι (tithēmi, "put, set, place").
Full definition of theca
Noun
- (biology) Any external case or sheath.
- (botany) The pollen producing organ usually found in pairs and forming an anther.
- (medicine) The twin layers of cells surrounding the basal lamina of an ovarian follicle
- (microbiology, planktology) The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates
- (coral science) The calcareous wall of a corallite, the exoskeleton of a coral polyp