Definition of "lexicographical"

lexicographical

adjective
comparative more lexicographical, superlative most lexicographical
1. Relating to lexicography.
  Quotations
  More importantly, there is an untold multitude of Indian English terms that have never been given lexicographical treatment in any dictionary.
  2012, James Lambert, “Beyond Hobson-Jobson: A new lexicography for Indian English”, in World Englishes‎, page 301
2. Meeting lexicographical standards or requirements; worthy of being included in a dictionary.
3. (chiefly computing) Relating to alphabetical order or a generalization thereof.