theca
Any of several external cases or sheathsAny of several external cases or sheaths.: The pollen-producing organ usually found in pairs and forming an anther.
Meaning
7 sensesAny of several external cases or sheaths.
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.
- outer sheath of the pupa of certain insects
- a case or sheath especially a pollen sac or moss capsule
Origin
From New Latin, from Latin thēca, from Ancient Greek θήκη (thḗkē, “a case, box, receptacleFrom New Latin, from Latin thēca, from Ancient Greek θήκη (thḗkē, “a case, box, receptacle”), from τίθημι (títhēmi, “put, set, place”). Doublet of tay.
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Forms
plural: thecas / thecaeSynonyms
1 synonyms- a case or sheath especially a pollen sac or moss capsule:sac
Word family
30 related wordsLessons for this word
1 lessons- A1Plural nouns — Because its plural is irregular