uranium-238
Word Rarity
Rare
Frequency: Zipf frequency 3.34 in modern English
9
Scrabble Score
7
Letters
4
Syllables
6
Unique Chars
Meaning
noun
A radioactive isotope of uranium, 23892U, having a half-life of 4.5 billion years; it accounts for about 99.3% of natural uranium.
Uncountable