GRE Word List

OBSIDIAN

a dark natural glass formed by the cooling of molten lava

The meaning of the word obsidian is a dark natural glass formed by the cooling of molten lava.

Random words

WordMeaning
glossa surface luster or brightness : shine
engageto offer (something, such as one's life or word) as backing to a cause or aim : to expose to risk for the attainment or support of some end
bolta lightning stroke
excoriateto wear off the skin of : abrade
occludeto close up or block off : obstruct
idioman expression in the usage of a language that is peculiar to itself either in having a meaning that cannot be derived from the conjoined meanings of its elements (such as up in the air for "undecided") or in its grammatically atypical use of words (such as give way)
cacophonousmarked by cacophony : harsh-sounding
deportto send out of the country by legal deportation
behemotha mighty animal described in Job 40:15–24 as an example of the power of God
grazeto feed on growing herbage, attached algae, or phytoplankton