radioactive isotopes 

when that pussy so bomb its radioactive and unstable

John: Yo her shit was like radioactive isotopes
Michael: Shit thats lethal my guy

radioactive isotopes by Flaming jay September 26, 2017

Isotope 

Each element has many versions that contain a different number of neutrons in the nucleas. Each different version of the element is called an isotope.

Carbon-13 is and isotope of Carbon

Isotope by PrivateDonut February 10, 2005

Isotope 

Isotopes are atoms of the same element which have differing number of neutrons.

This means they have the same number of protons.

Deuterium is an isotope of hydrogen.
Deuterium is hydrogen-2, i.e. hydrogen with a mass number of 2 (1 proton + 1 neutron).

Tritium is a rarer isotope of hydrogen, and is also known as hydrogen-3 (it has 1 proton + 2 neutrons).

Isotope by ChemMan May 12, 2010

isotope 

Lighter and heavier versions of the same thing, (but usually in reference to atoms)

Bud and Bud Lite are "isotopes" of Bud. When you gain weight, you just become an "isotope" of your former self.

isotope by 387mqr October 9, 2008

isotoses 

When someone uses a word that they have no fucking idea the meaning of in order to win a ton of points in Words With Friends on Facebook.

Dude, Ty always isotoses his way into winning against me in Words With Friends.

isotoses by Günter Frohlich October 11, 2011

IsoTope 

The "auxiliary" verger of Cloisterham Cathedral.

IsoTope may indeed have had just a minor role in the "Mystery Of Edwin Drood" tale, but I am still a bit surprised that neither Dickens nor Garfield made any mention of him in the famous mystery-thriller story.

IsoTope by QuacksO November 14, 2018