creatinine
(kriːˈætɪnaɪn)
Also kre-.
[f. creatine + -ine.]
An alkaline crystallizable substance C4H7N3O, a normal constituent of urine and of the juice of muscular flesh.
| 1851 Carpenter Man. Phys. 443 By the action of strong acids, kreatine may be readily converted into kreatinine. 1869 Roscoe Elem. Chem. 383 Creatinine crystallizes in colourless prisms. |