Rhyolite

[raiәlait]

解释:

(noun.) very acid volcanic rock.

手打:凯西--From WordNet

解释:

(n.) A quartzose trachyte, an igneous rock often showing a fluidal structure.

加勒特录入

解释:

n. an igneous rock called also Liparite and Quartz-trachyte.—adj. Rhyolit′ic.

校对:杜鲁门