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Use "chelicerae" in a sentence
"Her jaws widened, and from between her lips her spider chelicerae emerged, two appendages ending in hollow points, each loaded with poison."
"All members of this subphylum have chelicerae and pedipalps as their first and second prosomal appendages."
"After reaching maturity, deutonymphs find a plant or soft substrate, embed their chelicerae and transform into another inactive stage, which emerges as an adult in a few days."