theca
- Noun. (biology) Any external case or sheath.
- Noun. (botany) The pollen producing organ usually found in pairs and forming an anther.
- Noun. (medicine) The twin layers of cells surrounding the basal lamina of an ovarian follicle.
- Noun. (microbiology, planktology) The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates.
- Noun. (context, coral science) The calcareous wall of a corallite, the exoskeleton of a coral polyp.
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This entry was last updated on RefTopia from its source on 3/20/2012.