English dictionary
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English adjective: u | |||
| 1. | u (chiefly British) of or appropriate to the upper classes especially in language use | ||
| Similar | upper-class | ||
| Domain region | Britain, Great Britain, U.K., UK, United Kingdom, United Kingdom of Great Britain and Northern Ireland | ||
| Antonyms | low-class, lower-class, middle-class | ||
English noun: U | |||
| 1. | U (substance) a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine | ||
| Synonyms | uracil | ||
| Broader (hypernym) | base, nucleotide | ||
| Substance meronym | ribonucleic acid, RNA | ||
| 2. | U (substance) a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons | ||
| Synonyms | atomic number 92, uranium | ||
| Broader (hypernym) | metal, metallic element | ||
| Narrower (hyponym) | uranium 235, uranium 238 | ||
| Substance meronym | pitchblende, uraninite | ||
| 3. | U (communication) the 21st letter of the Roman alphabet | ||
| Broader (hypernym) | alphabetic character, letter, letter of the alphabet | ||
| Member meronym | Latin alphabet, Roman alphabet | ||
Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
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Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk