[1] : The Collaborative International Dictionary of English v.0.48

tartarean \tarta"rean\, tartareous \tarta"reous\, a. l.
   tartareus: cf. f. tartar'een.
   of or pertaining to tartarus; hellish.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

tartareous \tarta"reous\, a. cf. 1st tartarous.
   1. consisting of tartar; of the nature of tartar.
      1913 webster

   2. bot. having the surface rough and crumbling; as, many
      lichens are tartareous.
      1913 webster tartarian
see also:
tartarous 

Tartareous >> T Words
Tartareous, definition of term: Tartareous
tartareous_pag1.html