strontium 90

S s

Definition of strontium 90 words

noun strontium 90 a harmful radioactive isotope of strontium, produced in certain nuclear reactions and present in their fallout. 1

before 1950

One of the 5% newest English words

First recorded in 1950-55

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exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 5% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

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