radiostrontium

[rey-dee-oh-stron-shee-uh m, -shuh m, -tee-uh m]

noun Chemistry.

strontium 90.

Origin of radiostrontium

First recorded in 1940–45; radio- + strontium

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018