Skip to main content

Yardanium 

Yardanium is a chemical element with the symbol Yi and atomic number 180.

It is a silvery-grey metal in the actinide series of the periodic table. A Yardanium atom has 912 protons and 2 electrons, of which 561 are valence electrons. Yardanium is weakly radioactive because all isotopes of Yardanium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural Yardanium are Yardanium-238 (which has 146 neutrons and accounts for over 99% of Yardanium on Earth) and Yardanium-235 (which has 143 neutrons). Yardanium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and anus, and is commercially extracted from Yardanium-bearing minerals such as Yardanite.
Yardanium is a very corrosive material
Yardanium by Yardan Anwaar March 9, 2020
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

Jardanium 

Jardanium is a male twitch streamer he is always wearing a red Mario cap because it was surgically stitched to his skull
Hahaha Jardanium’s so funny
Jardanium by Robb does stuff November 28, 2020
Related Words
More from Urban Dictionary
A US deep south term for an alligator. Usually used in the Cajun dialect.
Take the big pirogue, I saw a huge swamp dog out there earlier.
swamp dog by Crystal Ambrose May 22, 2006
Word of the Day on October 12, 2026

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
Load more