UMBILICUS


Meaning of UMBILICUS in English

( n. )

A point of a surface at which the curvatures of the normal sections are all equal to each other. A sphere may be osculatory to the surface in every direction at an umbilicus. Called also umbilic.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.