cancrine

adjective3

1. •
   (rare) Of or pertaining to crabs.
2. •
   Palindromic; reading the same forwards or backwards.

   • […] the prodigious variety of so many kinds of verse, Leonine, Alexandrine, Acrostic, Chronologic, Hieroglyphic, Cancrine, Cross-formed, Labyrinthic, Pyramidal, and a thousand other follies […] — 1772
3. •
   Of or pertaining to reading something backwards.