/ ˈkjuːbɪkl; NAmE / noun
a small room that is made by separating off part of a larger room :
a shower cubicle
( BrE )
a changing cubicle (= for example at a public swimming pool)
( especially NAmE )
an office cubicle
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WORD ORIGIN
late Middle English (in the sense bedroom ): from Latin cubiculum , from cubare lie down.