Crossbones

//ˈkɹɒsbəʊnz// noun

Definitions

Noun
  1. 1
    A representation of two femurs (thighbones) crossed diagonally, chiefly combined with a human skull as a symbol of danger or death. plural, plural-only
  2. 2
    two crossed bones (or a representation of two crossed bones) used as a symbol danger or death wordnet

Etymology

From cross + bones.

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