Definition of theca Theca
the•ca
We found 13 definitions of theca from 5 different sources.
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What does theca mean?
WordNet
NounPlural: thecas |
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| theca - outer sheath of the pupa of certain insects | ||
| theca - a case or sheath especially a pollen sac or moss capsule | ||
| sac | ||
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Wiktionary 
- theca (Noun)
Any external case or sheath. - theca (Noun)
The pollen producing organ usually found in pairs and forming an anther. - theca (Noun)
The twin layers of cells surrounding the basal lamina of an ovarian follicle . - theca (Noun)
The membrane complex enveloping the cells of certain plankton including diatoms and dinoflagellates. - theca (Noun)
The calcareous wall of a corallite, the exoskeleton of a coral polyp.
Webster DictionaryWebster's Unabridged Dictionary 📘
- theca (n.)
A sheath; a case; as, the theca, or cell, of an anther; the theca, or spore case, of a fungus; the theca of the spinal cord. - theca (n.)
The chitinous cup which protects the hydranths of certain hydroids. - theca (n.)
The more or less cuplike calicle of a coral. - theca (n.)
The wall forming a calicle of a coral.
Chambers DictionaryChamber's 20th Century Dictionary 📕
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theca
thē′ka, n. a sheath, case, or sac, a spore-case: a case for a corporal-cloth:—pl. Thē′cæ.—adjs. Thē′cal, Thē′cate.—ns. Thē′caphore, a receptacle bearing thecæ; Thē′caspore, a spore produced in a theca.—adjs. Thecaspō′rous; Thecif′erous, bearing thecæ; Thē′ciform, thecal in use or form.—n. Thē′cium, the part of the apothecium containing the organs of the fruit in lichens. [Gr. thēkē.]
Part of speech
🔤- theca, noun, singular of thecae.
Pronunciation
Sign Language
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