The Collaborative International Dictionary of English v.0.48:
Bibliomania \Bib`li*o*ma"ni*a\, n. [Gr. ? book + ? madness: cf. F. bibliomanie.] A mania for acquiring books. [1913 Webster]WordNet (r) 3.0 (2006):
bibliomania n 1: preoccupation with the acquisition and possession of books