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theca

 - 5 dictionary results

the⋅ca

  [thee-kuh]
Use theca in a Sentence
–noun, plural -cae  [-see] .
1. a case or receptacle.
2. Botany, Mycology.
a. a sac, cell, or capsule.
b. a sporangium.
3. Anatomy, Zoology. a case or sheath enclosing an organ, structure, etc., as the horny covering of an insect pupa.
Origin:
1655–65; < L thēca < Gk thkē case, cover, akin to tithénai to place, put

Related forms:
thecal, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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the·ca   (thē'kə)   
n.   pl. the·cae (-sē', -kē')
A case, covering, or sheath, such as the pollen sac of an anther, the spore case of a moss, or the outer covering of the pupa of certain insects.

[Latin thēca, case, receptacle, from Greek thēkē; see dhē- in Indo-European roots.]
the'cal (-kəl) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: the·ca
Pronunciation: 'thE-k&
Function: noun
Inflected Form: plural the·cae /'thE-"sE, -"kE/
: an enveloping case or sheath (as the theca folliculi) of an anatomical part
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

theca the·ca (thē'kə)
n. pl. the·cae (-sē', -kē')
A case, covering, or sheath, such as the outer covering of the cocoon of certain insects.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
theca   (thē'kə)  Pronunciation Key 
Plural thecae (thē'sē', -kē')
A case, covering, or sheath, such as the pollen sac of an anther, the spore case of a moss, or the outer covering of the pupa of certain insects.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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