panspermia

noun
pan·​sper·​mia | \ ˌpan-ˈspər-mē-ə How to pronounce panspermia (audio) \

Medical Definition of panspermia

: 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

Learn More About panspermia

Dictionary Entries Near panspermia

pansinusitis

panspermia

Panstrongylus

See More Nearby Entries 

Cite this Entry

“Panspermia.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/panspermia. Accessed 24 Jan. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!