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n 1  :  physical material from which something is made or which has discrete existence <the of nerve tissue>   2  :  matter of particular or definite chemical constitution  3  :  something (as drugs or alcoholic beverages) deemed harmful and usu. subject to legal restriction <possession of a controlled >  <has a problem>  .
Similar sounding terms:  H-sub·stance 

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Ellsworth County Medical Center (Ellsworth, Kansas - Ellsworth County)