Umbilication

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Umbilication \Um*bil"i*ca"tion\, n.
     A slight, navel-like depression, or dimpling, of the center
     of a rounded body; as, the umbilication of a smallpox
     vesicle; also, the condition of being umbilicated.
     [1913 Webster]