theca
Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.
Related to theca: theca folliculi
theca
[the´kah] (L.)a case or sheath. adj., adj the´cal.
theca cor´dis pericardium.
theca folli´culi an envelope of condensed connective tissue surrounding a vesicular ovarian follicle; it is composed of an internal vascular layer (theca interna) and an external fibrous layer (theca externa).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
the·ca
, pl.the·cae
(thē'kă, thē'sē),A sheath or capsule.
[G. thēkē, a box]
Farlex Partner Medical Dictionary © Farlex 2012
theca
(thē′kə)n. pl. the·cae (-sē′, -kē′)
A case, covering, or sheath, such as the covering of the pollen sacs of an anther or the thick cell wall of certain dinoflagellates.
the′cal (-kəl) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
the·ca
, pl. thecae (thē'kă, -sē)A sheath or capsule.
[G. thēkē, a box]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
theca
A casing, outer covering or sheath.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
theca
- a sheath or case.
- the protective sheath surrounding the GRAAFIAN FOLLICLE.
- an obsolete term for ASCUS.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005