'belly button' definitions:

Definition of 'belly button'

(from WordNet)
noun
A scar where the umbilical cord was attached; "you were not supposed to show your navel on television"; "they argued whether or not Adam had a navel"; "she had a tattoo just above her bellybutton" [syn: navel, umbilicus, bellybutton, belly button, omphalos, omphalus]

Definition of 'belly button'

From: GCIDE
  • Navel \Na"vel\ (n[=a]"v'l), n. [AS. nafela, fr. nafu nave; akin to D. navel, G. nabel, OHG. nabolo, Icel. nafli, Dan. navle, Sw. nafle, L. umbilicus, Gr. 'omfalo`s, Skr. n[=a]bh[imac]la. [root]260. See Nave hub, and cf. Omphalic, Nombril, Umbilical.]
  • 1. (Anat.) A mark or depression in the middle of the abdomen; the umbilicus; called also belly button in humans. See Umbilicus. [1913 Webster]
  • 2. The central part or point of anything; the middle. [1913 Webster]
  • Within the navel of this hideous wood, Immured in cypress shades, a sorcerer dwells. --Milton. [1913 Webster]
  • 3. (Gun.) An eye on the under side of a carronade for securing it to a carriage. [1913 Webster]
  • Navel gall, a bruise on the top of the chine of the back of a horse, behind the saddle. --Johnson.
  • Navel point. (Her.) Same as Nombril. [1913 Webster]

Definition of 'belly button'

From: GCIDE
  • bellybutton \bel"ly*but`ton\, belly button \bel"ly but`ton\, n. The depression in the middle of the abdomen in humans left as a residue of the umbilical cord; the umbilicus; the navel[1]. [PJC]