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

 

schema

 noun
noun
BrE BrE//ˈskiːmə//
 
; NAmE NAmE//ˈskiːmə//
 
(pl. schemas, schemata
BrE BrE//ˈskiːmətə//
 
; NAmE NAmE//ˈskiːmətə//
 
; BrE BrE//skiːˈmɑːtə//
 
; NAmE NAmE//skiːˈmɑːtə//
 
)
(specialist)
 
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an outline of a plan or theory an attempt to reduce complex economic theory to a simple schema Word Origin late 18th cent. (as a term in philosophy): from Greek skhēma ‘form, figure’.
See the Oxford Advanced American Dictionary entry: schema