astronomical - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “astronomical”

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astronomical

adjective  us   /ˌæs·trəˈnɑm·ɪ·kəl/

astronomical adjective (LARGE)

extremely large: The costs were astronomical.

astronomical adjective (OF OBJECTS IN SPACE)

[not gradable] connected with astronomy : astronomical observations
(Definition of astronomical from the Cambridge Academic Content Dictionary © Cambridge University Press)
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