theca (English, noun)
expansion: theca (plural thecas or thecae)
Senses:
topics: biology
botany
natural-sciences
glosses: Any of several external cases or sheaths.
The pollen-producing organ usually found in pairs and forming an anther.
topics: biology
medicine
natural-sciences
sciences
glosses: Any of several external cases or sheaths.
The theca folliculi: the twin layers of cells surrounding the basal lamina of an ovarian follicle.
topics: biology
medicine
natural-sciences
sciences
glosses: Any of several external cases or sheaths.
The thecal sac: the portion of the dura mater that surrounds the spinal cord and the cauda equina.
topics: biology
botany
microbiology
natural-sciences
planktology
glosses: Any of several external cases or sheaths.
The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates.
topics: biology
natural-sciences
glosses: Any of several external cases or sheaths.
The calcareous wall of a corallite, the exoskeleton of a coral polyp.
qualifier: marine biology
topics: biology
microbiology
mycology
natural-sciences
glosses: Any of several external cases or sheaths.
A sporangium: a spore case.
topics: Christianity
glosses: A case for the corporal cloth used in the Eucharist.
Forms:
form: thecas
tags: plural
form: thecae
tags: plural