skull and crossbones

noun

Definition of skull and crossbones

plural skulls and crossbones
:a representation of a human skull over crossbones usually used as a warning of danger to life

First Known Use of skull and crossbones

1826


SKULL AND CROSSBONES Defined for English Language Learners

skull and crossbones

noun

Definition of skull and crossbones for English Language Learners

  • : a picture of a human skull above two crossed bones that was used on the flags of pirate ships in the past and is now used as a warning label on containers of poisonous or dangerous substances


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