'Boniness' definitions:

Definition of 'boniness'

From: WordNet
noun
Extreme leanness (usually caused by starvation or disease) [syn: bonyness, boniness, emaciation, gauntness, maceration]

Definition of 'Boniness'

From: GCIDE
  • Boniness \Bon"i*ness\, n. The condition or quality of being bony. [1913 Webster]