Medical Dictionary


noun pan·sper·mia \ˌpan-ˈspər-mē-ə\

Medical Definition of panspermia

  1. :  a theory propounded in the 19th century in opposition to the theory of spontaneous generation and holding that reproductive bodies of living organisms exist throughout the universe and develop wherever the environment is favorable

Seen and Heard

What made you want to look up panspermia? Please tell us where you read or heard it (including the quote, if possible).