Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See exobiology.

from the GNU version of the Collaborative International Dictionary of English

  • n. exobiology; -- not used technically.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the branch of biology concerned with the effects of outer space on living organisms and the search for extraterrestrial life

Etymologies

astro- +‎ biology (Wiktionary)

Examples

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