panspermia(redirected from Pamspermia)
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Related to Pamspermia: Directed panspermia
The theory that microorganisms or biochemical compounds from outer space are responsible for originating life on Earth and possibly in other parts of the universe where suitable environmental conditions exist.
[Greek panspermiā, mixture of all seeds : pan-, pan- + sperma, seed; see sperm1.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Philosophy) a 19th-century evolutionary theory that precursors to life exist in space and will develop on finding suitable conditions
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014