English

Definition of observatory noun from the Oxford Advanced Learner's Dictionary

 

observatory

 noun
noun
BrE BrE//əbˈzɜːvətri//
 
; NAmE NAmE//əbˈzɜːrvətɔːri//
 
(pl. observatories) Buildings
 
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a special building from which scientists watch the stars, the weather, etc. See related entries: Buildings Word Origin late 17th cent.; from modern Latin observatorium, from Latin observat- ‘watched’, from the verb observare ‘to watch’, from ob- ‘towards’ + servare ‘attend to, look at’.
See the Oxford Advanced American Dictionary entry: observatory