The subject of an experiment conducted by mad crazy quatum physics man named Schrödinger. Here is the kicker of the experiment: Most believe that Schrödinger was attempting to prove that the cat was both dead and alive at a single point in time. This is not quite true. The fellow was merely attempting to prove that the rules regarding microscopic objects (such as particles that can be in "dual states" so to speak) are in no way governed by the established laws for macroscopic objects (a cat). You see, it is well established that a cat is either A. Dead or B. Alive. Schrödinger put his cat in a solid lead box with a vial of gaseous hydrocyanic acid (HCN(g)) and a radioactive isotope with an established half life of about one hour. Because a single particle was used, the chance of it decaying was 50/50. The vial would be broken when the particle decayed, and the cat, being rather allergic to hydrocyanic acid, would die. The problem arises here. After an hour, the single radioactive particle, speaking on quatum terms, was in a dual state of decay and, eh, not decay. The laws of quatum physics say that all items in a closed system can be related with well known and well tested equations. Using these equations, the cat is in a dual state of being dead and alive. Not possible. Therefore, there can be no assumptions made regarding the relations of macroscopic objects and microscopic objects.

However, I believe the cat was just a clear cut zombie cat.
Schrödinger's Cat is actually so complicated that even though I tried to explain it in the simpliest terms I could, I made no sense.
by Nope4810 April 20, 2005
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To add to Nope4810's definition...

"Schrödinger's Cat is actually so complicated that even though I tried to explain it in the simpliest terms I could, I made no sense."

...Don't worry. The analogy is supposed to not make sense. Schrödinger was trying to illustrate how absurd it is to apply quantum mechanics on a macro scale.
Schrödinger's Cat is a deliberately confusing analogy trying to show how absurd the theory behind it actually is.
by lipplog July 29, 2015
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There was a scientist named Erwin Schrodinger who put a cat in a box and you can not see the cat so the cat is dead and alive for say. This is popular with the show the Big Bang Theory and they use the phrase to describe relationships between the group of friends.
Sheldon: Your relationship with Leonerd is like Schrödinger's Cat.

Penny: What?

Sheldon: Your relationship can be thought of as good and bad to find out you need to open the box.
by chunihan August 18, 2012
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A hypothetical cat subjected to the difficult job of being both alive and dead at the same time for all eternity.
Schrödinger's cat is dead.
Schrödinger's cat is not dead.
by Zi October 3, 2004
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Schrödinger want to kill his cat, so he made a plan. He put in cat in a sealed box. There are a flask of poison and a radioactive source inside. When the box open. The cat will be either dead or alive.

If the cat is alive. He will do it again until the cat is dead.
Schrödinger: Damn it. My cat is still alive!
Cat: What are you doing?
World: Schrödinger's cat is brilliant.

Cat: No! He is trying to kill me...
by QABCQ September 7, 2012
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This is when you dream or think of music but when you try to play it you find it is both not in your head and in your head at the same time.
I woke up with the perfect melody but when I tried to play it the freaking thing was both there and not there at the same time - freaking Schrödinger's cat music!
by saskers January 30, 2021
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1. (n.) A paradox created by Austrian physicist Erwin Schrödinger which outlines a situation in which a cat in a box, must be for all intents and purposes be simultaneously both dead and alive at the same time. This tests the theory of quantum mechanics by pouring in lethal radiation with the cat. Who knows if it's dead?
2. (n.) A justification for killing cats
The physics teacher tested quantum mechanics and the theory of probability by using the Schrödinger's Cat Paradox.
by DCCXIV November 2, 2015
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