exobiology

[ek-soh-bahy-ol-uh-jee]

noun

the study of life beyond the earth's atmosphere, as on other planets.

Origin of exobiology

First recorded in 1955–60; exo- + biology

Also called astrobiology, space biology.

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 astrobiology

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