Transcription
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- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
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- /juː/
- /juː/
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- US Pronunciation
- US IPA
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- /juː/
Definition of u-238 word
- noun u-238 the radioactive uranium isotope having a mass number 238, comprising 99.28 percent of natural uranium: used chiefly in nuclear reactors as a source of the fissionable isotope plutonium 239. 1
Information block about the term
Origin of u-238
First appearance:
before 1940 One of the 7% newest English words
First recorded in 1940-45
Historical Comparancy
Parts of speech for U-238
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
u-238 popularity
A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 32% of English native speakers know the meaning and use word.
According to our data about 60% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.
Top questions with u-238
- what is u-238?
- why is u-238 used for dating rocks?