tunica
Americannoun
noun
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anatomy tissue forming a layer or covering of an organ or part, such as any of the tissue layers of a blood vessel wall
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botany the outer layer or layers of cells of the meristem at a shoot tip, which produces the epidermis and cells beneath it Compare corpus
Etymology
Origin of tunica
< New Latin, special use of Latin tunica tunic
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These mimic the layered structure of the native vascular wall, which, from inside out, is composed of the tunica intima, tunica media and tunica adventitia tissues.
From Science Daily • Jan. 13, 2024
The vasomotor centers control vessel tone or contraction of the smooth muscle in the tunica media.
From Textbooks • Jun. 19, 2013
The smooth muscle layers of the tunica media are supported by a framework of collagenous fibers that also binds the tunica media to the inner and outer tunics.
From Textbooks • Jun. 19, 2013
Arteries, arterioles, venules, and veins are composed of three tunics known as the tunica intima, tunica media, and tunica externa.
From Textbooks • Jun. 19, 2013
The outermost is the tunica adventitia, composed of connective tissue; immediately internal to this is the yellow elastic coat; within this again the muscular coat, formed of involuntary.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
