noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A small, navel-shaped depression, or dimple, at the centre of a rounded body.

   "papillary umbilications"

Example

More examples

"the umbilication of a smallpox vesicle"

Etymology

From Latin umbilicatus. By surface analysis, umbilic- + -ation.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.