Obsidian barrier Synonyms

Definitions for Obsidian


  • (noun) acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark , but transparent in thin pieces

OB abbreviation

OB is an abbreviation for Obsidian Barrier
What does OB stand for?
OB stands for "Obsidian Barrier"

Definitions for Barrier


  • (noun) a physical object that blocks the way
  • (noun) a structure or object that impedes free movement
  • (noun) anything serving to maintain separation by obstructing vision or access