| U |
|
noun
- The twenty-first letter of the Appendix:Roman script, English alphabet.
adjective
- (context, mostly, British) Characteristic of the upper classes, particularly in use of language.
abbreviation
- (British film certificate) Universal - suitable for all ages
- Under
- University
- Up, Upper
|
|
| uracil |
|
noun
- one of the bases of RNA which pairs with adenine and is symbolised by U.
|
| urea |
|
noun
- (biochemistry) A water-soluble organic compound, CO(NH2)2, formed by the metabolism of proteins and excreted in the urine.
|
| urease |
|
noun - (chemistry) the enzyme, found in soil bacteria and some plants, that catalyzes the hydrolysis of urea into ammonia and carbon dioxide
|
| uric acid |
|
noun - (chemistry) a bicyclic heterocyclic phenolic compound, formed in the body by the metabolism of protein and excreted in the urine (or in avian faeces)
|
| uridine |
|
noun - (chemistry) a nucleoside formed from uracil and ribose
|
| urochrome |
|
noun Urochrome
- A pigment that causes the yellow color in urine. It is a breakdown product of the blood's haemoglobin and is removed by the kidneys.
|
| uronic acid |
|
noun - (chemistry) any carboxylic acid formed by oxidation of the terminal -CH2OH of an aldose
|
