tartareous

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

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