Found 2 items, similar to rhyolite.
English → English (WordNet) Definition: rhyolite rhyolite n : very acid volcanic rock
English → English (gcide) Definition: Rhyolite Rhyolite \Rhy"o*lite\, n. [Gr. "rei^n to flow + -lite.] (Min.) A quartzose trachyte, an igneous rock often showing a fluidal structure. -- Rhy`o*lit"ic,, a. [1913 Webster]