A chelicera (chelicerae, pl.) is a prehensile appendage at the anterior end of Cheliceriformes. In arachnids, the chelicerae are modified into poison-injecting fangs.

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A chelicera (chelicerae, pl.) is a prehensile appendage at the anterior end of Cheliceriformes. In arachnids, the chelicerae are modified into poison-injecting fangs.