umbilication

[uhm-bil-i-key-shuhn]

noun

1. a central navellike depression.

2. an umbilicate condition or formation.

Word History and Origins

Origin of umbilication¹

First recorded in 1870–75; umbilic(us) + -ation

Example Sentences

Empty cells becoming confluent, vesicular by incurvation of the circular margin, forming a deep and round umbilication.

From Project Gutenberg

Early in their career an apicial depression can be seen, which later deepens into a characteristic umbilication.

From Project Gutenberg

It is pea-sized and globular in shape; its umbilication has been usually quite removed by the complete filling of its chamber with distinctly purulent contents; it is often surrounded by a halo due to hyper�mia or exudation; and, the total number of individual lesions being then fairly determined, it is often closely set against its fellows, islets of unaffected integument having meantime become fewer and more contracted.

From Project Gutenberg

Eventually, it too, as a result of the maceration and tension incidental to the complete filling of the pock with pus-elements, is ruptured or stretched, and the umbilication of the pustule disappears.

From Project Gutenberg

Umbilication rapidly occurs at the apex, and simultaneously their contents become lactescent and gradually sero-purulent.

From Project Gutenberg