The Collaborative International Dictionary of English v.0.48:
Bibliothecal \Bib`li*o*the"cal\, a. [L. bibliothecalis. See Bibliotheke.] Belonging to a library. --Byrom. [1913 Webster]WordNet (r) 3.0 (2006):
bibliothecal adj 1: of or relating to a library or bibliotheca or a librarian [syn: bibliothecal, bibliothecarial]