noun. ['əbˈsɪdiːən'] acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces.
Rhymes with Obsidian
How do you pronounce obsidian?
Pronounce obsidian as əbˈsɪdiən.
US - How to pronounce obsidian in American English
UK - How to pronounce obsidian in British English
Sentences with obsidian
Arrowheads were made from flint or obsidian but could also be made from bone, horn and copper.
2. Noun, singular or mass
Unlike other rocks, obsidian is not considered a mineral because of its noncrystalline, glass-like structure.