crossbones Meaning, Definition & Usage

  1. noun two crossed bones (or a representation of two crossed bones) used as a symbol danger or death

WordNet

Cross"bones` noun plural
Definitions
  1. A representation of two of the leg bones or arm bones of a skeleton, laid crosswise, often surmounted with a skull, and serving as a symbol of death.
    Crossbones, scythes, hourglasses, and other lugubrios emblems of mortality. Hawthorne.

Webster 1913