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
effluviuman invisible emanation
labilereadily or continually undergoing chemical, physical, or biological change or breakdown : unstable
deignto condescend reluctantly and with a strong sense of the affront to one's superiority that is involved : stoop
anthropoidany of a suborder (Anthropoidea) of higher primates (such as macaques and marmosets)
prolongto lengthen in time : continue
quibbleto evade the point of an argument by caviling about words
acutecharacterized by sharpness or severity of sudden onset
omnipotentalmighty
corroborateto support with evidence or authority : make more certain
gawka clumsy stupid person : lout