Entry 1 sense Webster, 1913 Abiogenist · Ab·i·og·e·nist · IPA /ˌeɪ.baiˈɑ.d͡ʒɛ.nəst/ 01 n. One who believes that life can be produced independently of antecedent. 1. One who believes that life can be produced independently of antecedent.(Biol.)