Hanyu da cidian 漢語大詞典
Luo Zhufeng 羅竹風, ed. The Commercial Press (H.K.) Version 3.0, © 2010.
The Hanyu da cidian is by far the most comprehensive dictionary available for the Chinese language, including over 300,000 entries, with full definitions and historical citations for each entry. Compilation of the dictionary was undertaken from 1979-1993 by a staff of over 300 scholars and lexicographers; the digital version has its own native search functions, or users can enter search terms directly.
In Chinese only, with separate editions for traditional and simplified characters.