caesium
Britishnoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In 1955, the NPL invented the first atomic clock of the sort that is used today, based on the frequency of radiation from an atom of the element caesium.
From BBC ● Mar. 2, 2025
Within the sensors, the light passes through a small glass container containing a caesium gas, which absorbs the light at the right light frequencies.
From Science Daily ● May 2, 2024
The small silver cylinder is a 19-becquerel caesium 137 ceramic source commonly used in radiation gauges.
From Seattle Times ● Jan. 28, 2023
The radioactive strontium, caesium and plutonium mainly affected Ukraine and neighboring Belarus, as well as parts of Russia and Europe.
From Reuters ● Feb. 25, 2022
We see, also, that caesium causes inflection, and rubidium does not; and these two metals are allied to sodium and potassium.
From Insectivorous Plants by Darwin, Charles
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
