Top definition
the smallest particle of matter, contains protons, neutrons, and electrons. The protons and neutrons are contained in the nucleus while the electrons revolve around the nucleus at immense speeds
by CorrodedBeing December 18, 2004
Get a Atom mug for your dog Riley.
Jul 15 Word of the Day
The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.
Billionaires are having a dick swinging space race while the earth experiences record breaking heatwaves that cause sea creatures to literally cook inside their shells. We need planetary quarantine.
by monkeylabor July 14, 2021
Get a Planetary Quarantine mug for your brother Jerry.
2
the smallest particle of a substance that can exist by itself or be combined with other atoms to form a molecule
Atoms cannot be seen by the naked eye.
by Adrianna Lazaro February 25, 2015
Get a atom mug for your Facebook friend Abdul.
4
-I just made a huge one-word-I-love-you word
- what??
-ifuckingloveyousofuckingmuchicantimaginemylifewithouyouyourewhatiwantedinmylifeyouyouyou
- just say Atom man
- okan
by AlexanderTheG February 17, 2021
Get a Atom mug for your mate Jerry.
5
A Tom is Norwegian slang for a paedophile. They usually have up to 25 kids in his basement at any one time and will show their cock to a man at any possibility. They usually reside in an attic and work 10 to 15 hours a day, more than likely ignoring friends. They play sports games like madden, fifa, NBA etc but are never good at them. They usually have a large god complex.
Man that guy really is a Tom.

Bill Cosby is a Tom
by Dfhb cfhj April 28, 2020
Get the A Tom neck gaiter and mug.
6
Ass To Other girls Mouth.
The act of fucking a girl in the ass (hard) and then putting your shitty member into another girls mouth waiting nearby.
Christoph, what did you think when you gave Mareike the old a.t.o.m.? She didn't seem to like it.
by Andi Putlitz December 03, 2004
Get the a.t.o.m. neck gaiter and mug.