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obsidian

noun

/əbˈsɪdiən/

Meaning

A hard, dark, glasslike volcanic rock formed by rapid solidification of lava.

The knife was made from sharp obsidian.

volcanic glass, lava glass, natural glass, igneous rock

sandstone, limestone

obsidian blade, obsidian tool, black obsidian, polished obsidian

a person who tends to see the worst aspect of things or believes that the worst will happen; someone...

intense anger or rage

the latest time or date by which something should be completed

A written law passed by a legislative body.

the act of renouncing or rejecting something, especially self-denial

The action or state of keeping careful watch for possible danger or difficulties.