avidity
avid.ity \*-'vid-*t-e--, a-\ n 1: the quality or state of being avid 2: an intense desire for gain 3a: the strength of an acid or base dependent on its degree of dissociation 3b: AFFINITY
Webster's English Dictionaryavid.ity \*-'vid-*t-e--, a-\ n 1: the quality or state of being avid 2: an intense desire for gain 3a: the strength of an acid or base dependent on its degree of dissociation 3b: AFFINITY