adventitia

[ ad-ven-tish-ee-uh, -tish-uh ]

noun

, Anatomy.

1. the external covering of an organ or other structure, derived from connective tissue, especially the external covering of a blood vessel.

adventitia

/ ˌædvɛnˈtɪʃɪə; -ˈtɪʃə /

noun

1. the outermost covering of an organ or part, esp the outer coat of a blood vessel

Other Words From

• adven·titial adjective

Word History and Origins

Origin of adventitia¹

1875–80; < Latin adventīcia, neuter plural of adventīcius adventitious

Word History and Origins

Origin of adventitia¹

C19: New Latin, from the neuter plural of Latin adventīcius; see adventitious

Example Sentences

Up to the third decade there is only a strengthening of the media and adventitia.

From Project Gutenberg

The adventitia varies much in thickness, being better developed in the medium-sized than in the large arteries.

From Project Gutenberg

Coincidently with this, there is thickening by a connective tissue growth in the adventitia.

From Project Gutenberg

There is also, as a rule, rather pronounced hypertrophy of the adventitia.

From Project Gutenberg