'Spininess' definitions:

Definition of 'spininess'

From: WordNet
noun
The quality of being covered with prickly thorns or spines [syn: prickliness, bristliness, spininess, thorniness]

Definition of 'Spininess'

From: GCIDE
  • Spininess \Spin"i*ness\, n. Quality of being spiny. [1913 Webster]