They have mouthparts called chelicerae which are often connected to venom glands as most spiders are venomous.
ðeɪ hæv mˈaʊθpɑːɹts kˈɔːld tʃˈɛlɪsɚɹˌiː wˌɪtʃ ɑːɹ ˈɔfən kənˈɛktᵻd tə vˈɛnəm ɡlˈændz æz mˈoʊst spˈaɪdɚz ɑːɹ vˈɛnəməs.