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
euphemismthe substitution of an agreeable or inoffensive expression for one that may offend or suggest something unpleasant
avalanchea large mass of snow, ice, earth, rock, or other material in swift motion down a mountainside or over a precipice
detrimentalobviously harmful : damaging
egoisma doctrine that individual self-interest is the actual motive of all conscious action
indoctrinateto imbue with a usually partisan or sectarian opinion, point of view, or principle
nugatoryof little or no consequence : trifling
lassitudea condition of weariness or debility : fatigue
stanchto check or stop the flowing of
arborealof, relating to, or resembling a tree
surlymenacing or threatening in appearance