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astral
astral body
astral plane
astral projection
astray
astride
astringent
astro-
astrobiology
astrobleme
astrochemistry
astrocompass
astrocyte
astrocytoma
astrodome
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astrobiology
as·tro·bi·ol·o·gy [ àstrō bī ólləjee ]


noun 
Definition:
 

Same as  exobiology

as·tro·bi·o·log·i·cal [ àstrō bī ə lójjik'l ] adjective
as·tro·bi·ol·o·gist noun
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