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astrobiology

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(as′trō bī äl′ə jē)

noun

the branch of biology that investigates the existence of living organisms on planets other than earth

See astrobiology in American Heritage Dictionary 4

noun

See exobiology.

Related Forms:

asˌtro·biˌo·logˈi·cal (-ə-lŏjˈĭ-kəl) adjective

asˌtro·bi·olˈo·gist noun

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