noun \ˌā-ˌbī-ō-ˈje-nə-səs\

Definition of ABIOGENESIS

:  the origin of life from nonliving matter: as
a :  spontaneous generation
b :  a theory in the evolution of early life on earth: organic molecules and subsequent simple life forms first originated from inorganic substances
abi·og·e·nist \ˌā-(ˌ)bī-ˈä-jə-nist\ noun


New Latin, from 2a- + bio- + Latin genesis
First Known Use: 1870


noun \ˌā-ˌbī-ō-ˈjen-ə-səs\   (Medical Dictionary)

Medical Definition of ABIOGENESIS

: the supposed spontaneous origination of living organisms directly from lifeless matter—called also spontaneous generation; compare biogenesis
abi·og·e·nist \ˌā-(ˌ)bī-ˈäj-ə-nəst\ or abio·gen·e·sist \-ˌbī-ō-ˈjen-ə-səst\ noun


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