'Haecceity' definitions:

Definition of 'haecceity'

From: WordNet
noun
The essence that makes something the kind of thing it is and makes it different from any other [syn: quiddity, haecceity]

Definition of 'Haecceity'

From: GCIDE
  • Haecceity \H[ae]c*ce"i*ty\ (h[e^]k*s[=e]"[i^]*t[y^]), [L. h[ae]cce this.] (Logic) Literally, this-ness. A scholastic term to express individuality or singleness; as, this book. [1913 Webster] Haemato Haema