bibliothecarial UK /ˌbɪb.li.ə(ʊ).θəˈkɛəɹi.əl/US /ˌbɪb.li.oʊ.θəˈkɛɹi.əl/ adjective1 •Relating to libraries.We may regret that there is no bibliothecarial equivalent to the Hippocratic oath, and that the efforts of some librarians to design codes of ethics […] — 1978
