cystine Chem.
(ˈsɪstaɪn)
Also -in.
[mod. f. Gr. κύστις bladder + -ine.]
An organic base, C3NHO7SO2, a yellowish crystalline substance, found in a rare kind of urinary calculus.
| 1843 Jones in Trans. Med.-Chirurg. Soc. XXVI. 110 The layers exterior to this nucleus contained no cystine. |
| attrib. 1853 G. Bird Urin. Deposits (ed. 4) vii. 187 The specific gravity of cystine urine is generally below the average. 1885 W. Roberts Urin. & Renal Dis. (ed. 4) i. iii. 89 The following case of cystine calculus..occurred in the Manchester Infirmary. |
Hence
cystiˈnuria, the condition of body in which cystine is found in the urine.
| 1853 G. Bird Urin. Deposits vii. 193. 1963 Lancet 19 Jan. 127/1 In patients with cystinuria, lysine and arginine are poorly absorbed from the jejunum and ileum. |