strontium 90

Save This Word!

noun Chemistry.

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

QUIZ

QUIZ YOURSELF ON "IS" VS. "ARE"

"Is" it time for a new quiz? "Are" you ready? Then prove your excellent skills on using "is" vs. "are."

Question 1 of 7

IS and ARE are both forms of which verb?

have

TAKE THE QUIZ TO FIND OUT

Also called radiostrontium.

Origin of strontium 90

First recorded in 1950–55

Words nearby strontium 90

strongylosis, strontia, strontian, strontianite, strontium, strontium 90, strontium hydroxide, strontium monoxide, strontium unit, strook, strop

How to use strontium 90 in a sentence

I placed the steel tank near the cage, uncoiled the hose attachment, unscrewed the top, and dumped in the salts of strontium.
In Search of the Unknown|Robert W. Chambers
In the absence of baryta or lime it is filtered off, and weighed as strontium carbonate, which contains 70.17 per cent.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
The solution contains the barium as baric chloride mixed, perhaps, with salts of strontium or lime.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
In this last case it may be examined for barium and strontium, the former of which will rarely be present.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer

It was established that strontium-90 and cesium-137, important in fallout on land, enter the marine cycles only in minute amounts.
Atoms, Nature, and Man|Neal O. Hines

Scientific definitions for strontium 90

strontium 90

A radioactive isotope of strontium having a mass number of 90 and a half-life of 28 years. Strontium 90 is the most dangerous component of the fallout from nuclear explosions because it is easily absorbed by the body. It is also used in medicine to treat cancer.