tunica
Americannoun
plural
tunicaenoun
-
anatomy tissue forming a layer or covering of an organ or part, such as any of the tissue layers of a blood vessel wall
-
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 tunica externa protects the vessel from wear and tear and provides support for the vessel.
From Textbooks • Jun. 9, 2022
The tunica media consists of layers of smooth muscle supported by connective tissue that is primarily made up of elastic fibers, most of which are arranged in circular sheets.
From Textbooks • Jun. 19, 2013
The vasomotor centers control vessel tone or contraction of the smooth muscle in the tunica media.
From Textbooks • Jun. 19, 2013
The tunica arachnoidea had generally lost its transparency, and was considerably thickened.
From Observations on Madness and Melancholy Including Practical Remarks on those Diseases together with Cases and an Account of the Morbid Appearances on Dissection by Haslam, John
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.
