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rim

noun [C]
 
 
/rɪm/

Definition

the outer, often curved or circular, edge of something: The rim of the cup was chipped and broken. My reading glasses have wire rims.Edges and extremities of objectsSurfaces of objects rimless
 
 
/-ləs/ adjective
He's got new rimless reading glasses.Edges and extremities of objectsSurfaces of objects
(Definition of rim noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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