exobiology [ek-soh-bahy-ol-uh-jee] WORD ORIGIN noun the study of life beyond the earth’s atmosphere, as on other planets.
Origin of exobiology First recorded in 1955–60;+ Also called , . Related formsex·o·bi·o·log·i·cal [ek-soh-bahy-uh-loj-i-kuh l] /ˌɛk soʊˌbaɪ əˈlɒdʒ ɪ kəl/, adjectiveex·o·bi·ol·o·gist, noun Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 British Dictionary definitions for exobiology exobiology noun another name for Derived Formsexobiologist, noun Collins English Dictionary – Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 exobiology in Science exobiology [ĕk′sō-bī-ŏl′ə-jē] The branch of biology that deals with the search for extraterrestrial life and the effects of extraterrestrial surroundings on living organisms. Also called astrobiology The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.