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
skeptican adherent or advocate of skepticism
ashenof, relating to, or made from ash wood
truculencethe quality or state of being truculent
generateto bring into existence: such as
ratiocinationthe process of exact thinking : reasoning
divulgeto make known (something, such as a confidence or secret)
grumbleto mutter in discontent
vergebrink
philanthropistone who makes an active effort to promote human welfare : a person who practices philanthropy
raila bar extending from one post or support to another and serving as a guard or barrier