Definition of tunica in English:
tunica
nounPlural tunicae ˈtjuːnɪkəˈt(y)o͞onəkə
1Anatomy
A membranous sheath enveloping or lining an organ.
with Latin modifier tunica media
Example sentencesExamples
- Arterial calcification most commonly involves the tunica media.
- Muscle fibers arranged in various striae form the tunica media of veins, for example, in medium-sized vessels.
- The tumor completely encased the right coronary artery with external compression of the vessel wall without invasion into the tunica media.
- Veins typically have 3 layers: tunica intima, media, and adventitia.
- The tumor seemed to infiltrate the tunica albuginea and the rete testis, as well as the root of the epididymis.
Synonyms
covering, cover, case, casing, envelope, sleeve, wrapper
2Botany
The outer layer or layers of cells in an apical meristem, which contribute to surface growth.
Origin
Late 17th century: from Latin, literally 'tunic'.