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astride
astringent
astro-
astrobiology
astrobleme
astrochemistry
astrocompass
astrocyte
astrocytoma
astrodome
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astrocytoma
as·tro·cy·to·ma [ àstrō sī tṓmə ] (plural as·tro·cy·to·mas or as·tro·cy·to·ma·ta [ àstrō sī tṓmətə ])


noun 
Definition:
 
malignant brain tumor: a commonly occurring malignant brain tumor made up of star-shaped cells astrocytes
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