Tar*ta"re*an (?), Tar*ta"re*ous (?), a. [L. tartareus: cf. F. tartar'een.]
Of or pertaining to Tartarus; hellish.
© Webster 1913.
Tar*ta"re*ous, a. [Cf. 1st Tartarous.]
1.
Consisting of tartar; of the nature of tartar.
2. Bot.
Having the surface rough and crumbling; as, many lichens are tartareous.
© Webster 1913.