umbilicusEnglishOxford Dictionary of Englishumbilicus /ʌmˈbɪlɪkəs , ˌʌmbɪˈlʌɪkəs / ▸ noun (plural umbilici /ʌmˈbɪlɪsʌɪ, ˌʌmbɪˈlʌɪsʌɪ/)(plural or umbilicuses) 1 Anatomy the navel. 2 Zoology a depression or hole at the centre of the shell whorls of some gastropod molluscs and many ammonites. ▪ a hole at each end of the hollow shaft of a feather. – ORIGIN late 17th century: from Latin: related to Greek omphalos, also to navel.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
