Definition of "astrobiology" []

• See exobiology. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It appears astrobiology is the funding source for the methane study, If you think this effort is worth funding please state so, I happen to think it was worth the effort if they are correct which is still open in my mind."
• "A new book on astrobiology is out from a pair of American scientists, and it pegs the end of all life on earth at 500 million years from now."
• "The subject matter of astrobiology is fascinating."