astronomical Definition in the Cambridge English Dictionary
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Definition of “astronomical” - English Dictionary

Definition of "astronomical" - American English Dictionary

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astronomicaladjective

 us   /ˌæs·trəˈnɑm·ɪ·kəl/

astronomical adjective (LARGE)

extremelylarge: 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)

Definition of "astronomical" - British English Dictionary

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astronomicaladjective

uk   /ˌæs.trəˈnɒm.ɪ.kəl/  us   /-ˈnɑː.mɪ-/

astronomical adjective (SCIENTIFIC)

[before noun] connected with ​astronomy: the Royal Astronomical Society astronomical observations/​instruments

astronomical adjective (LARGE)

informal (also astronomic ) An astronomical ​amount is ​extremelylarge: an astronomical ​rent/​bill/​price/​fee
(Definition of astronomical from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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