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retinal (2)
retinite
retinitis
retinitis pigmentosa
retinitis proliferans
retino-
retinoblastoma
retinoic acid
retinoid
retinol
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reticuloendothelial system

re·tic·u·lo·en·do·the·li·al sys·tem [ rə tìkylō endō thlee əl sìstəm ]


noun 
Definition:
 
part of the immune system: collections of large phagocytes and endothelial cells found in the liver, spleen, bone marrow, and elsewhere ( dated )

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