| Answer | Crossword Clue |
|---|---|
| citrullines | CITRULLINE, an amino acid formed in the production of urea |
| citrulline | an amino acid formed in the production of urea |
| ornithine | amino acid, H2N(CH2)3CH(NH2)COOH, obtained by the hydrolysis of arginine and occurring as an intermediate compound in the urea cycle of mammals |
| aspartic | as in aspartic acid, an amino acid found in young sugar-cane, etc, and formed by the hydrolysis of asparagine |
| carbamino | relating to any of the carbamic acid derivatives formed by reaction of carbon dioxide with an amino acid or a protein |
