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    ureameter
CIDE DICTIONARY
ureameter, n. [Urea + -meter.]. 
                                            
                                         An apparatus for the determination of the amount of urea in urine, in which the nitrogen evolved by the action of certain reagents, on a given volume of urine, is collected and measured, and the urea calculated accordingly.                                                                                 [1913 Webster]                                                                                                                    
                                                                                    
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