| CYSTINE | • cystine n. (Chemistry) A nonessential amino acid formed by the oxidation of cysteine; it contains two cysteine… • CYSTINE n. a sulphur-containing amino present in proteins. | 
| CYSTINES | • cystines n. Plural of cystine. • CYSTINE n. a sulphur-containing amino present in proteins. | 
| ROYSTING | • ROYST v. to revel noisily, carouse, also ROIST, ROISTER, ROYSTER. | 
| TRYSTING | • trysting v. Present participle of tryst. • trysting n. An appointment; a tryst. • TRYST v. to make an appointment with. | 
| ENCYSTING | • encysting v. Present participle of encyst. • ENCYST v. to become enclosed in a vesicle. | 
| CYSTINOSES | • CYSTINOSIS n. a congenital defect of the metabolism that leads to the accumulation of cystine in the kidneys, blood etc. | 
| CYSTINOSIS | • cystinosis n. (Pathology) A disorder caused by abnormal metabolism of cystine. • CYSTINOSIS n. a congenital defect of the metabolism that leads to the accumulation of cystine in the kidneys, blood etc. | 
| CYSTINURIA | • cystinuria n. (Medicine) The presence of cystine in the urine. • CYSTINURIA n. a condition in which excessive levels of the amino acid cystine are present in the urine. | 
| AMETHYSTINE | • amethystine adj. Like amethyst, especially in colour; violet-purple. • AMETHYSTINE adj. of or like amethyst. | 
| CYSTINURIAS | • cystinurias n. Plural of cystinuria. • CYSTINURIA n. a condition in which excessive levels of the amino acid cystine are present in the urine. | 
| MICROCYSTIN | • microcystin n. (Biochemistry) Any of a class of cyclic oligopeptide hepatotoxins produced by cyanobacteria. | 
| MISTRYSTING | • mistrysting v. Present participle of mistryst. • MISTRYST v. (Scots) to fail to keep an appointment with. | 
| MICROCYSTINS | • microcystins n. Plural of microcystin. |