abbr.
U
| Dictionary: U4 |
| WordNet: U |
Note: click on a word meaning below to see its connections and related words.
The noun has 3 meanings:
Meaning #1:
a nitrogen-containing base found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
Synonym: uracil
Meaning #2:
a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
Synonyms: uranium, atomic number 92
Meaning #3:
the 21st letter of the Roman alphabet
Learn More
 | 1U (technology) |
| 2U (technology) |
| 1RU (technology) |
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Copyrights:
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
