theca
a case or receptacle.
Botany, Mycology.
a sac, cell, or capsule.
a sporangium.
Anatomy, Zoology. a case or sheath enclosing an organ, structure, etc., as the horny covering of an insect pupa or the loose membrane covering the spinal cord.
Origin of theca
1Other words from theca
- thecal, adjective
Words Nearby theca
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use theca in a sentence
From its sides behind proceed the antenn-cases (Cera-theca); and before from the middle, the tongue-case (Glosso-theca).
An Introduction to Entomology: Vol. III (of 4) | William KirbyA chronic inflammatory involvement of a theca through which an important tendon plays may cause adhesions to form.
Lameness of the Horse | John Victor LacroixIn addition to aspirating synovia, the introduction of equal parts of alcohol and tincture of iodin into the theca is necessary.
Lameness of the Horse | John Victor LacroixThe body is often provided with not-living external formations “stalk” and “theca” (or “lorica”).
The word theca signified in classical Latin a case or receptacle in which any object was kept.
The Care of Books | John Willis Clark
British Dictionary definitions for theca
/ (ˈθiːkə) /
botany an enclosing organ, cell, or spore case, esp the capsule of a moss
zoology a hard outer covering, such as the cup-shaped container of a coral polyp
Origin of theca
1Derived forms of theca
- thecal or thecate, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for theca
[ thē′kə ]
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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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