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One of the two building blocks of an atomic Nucleus. It is positively charged, unlike the other atomic building block, the neutron, which weighs the same as the proton but has no electrical charge.
A hydrogen atom has 1 proton and no neutrons.
by Tesformes March 23, 2004
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A positively charged subatomic particle. The Proton determines the type of element an atom is. It is composed of smaller fundamental particles called quarks. It contains 3 quarks (2 up quarks and 1 down quarks) making it a Baryon. The anti particle of a proton is the antiproton.
examples look up Proton on google images and research on it, also learn about the Periodic Table of Elements!!!!!!!
by AlbertinaEinstein May 11, 2007
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A car I would never ever be seen in. The Satria GTI is a weak excuse for a performance car, regardless of its Lotus underpinnings. People who own one and drive like it has poke are fags. A pushbike has more street-cred than anything bearing a Proton badge.
A: "Hey, I just bought a Proton Satria GTI"

B: "Are you serious?"

A: "It's tuned by lotus and has Recaro seats!"

B: "It's a chat car. I'd rather walk, you sad wanker"
by E46M3 August 28, 2008
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A car manufacturing company which produces low quality cars at a high price. Only exists because of government protection in applying huge taxes on foreign cars. Slowly losing ground to superior travelling vehicles with better reliability, excellent customer support in comparison and better quality, known as "Odocoileus hemionus" or more commonly refered to as "donkey".
P - pathetic
R - ridiculous
O - outrageous
T - type
O - of
N - name
by Oldfoot June 07, 2005
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Proton or Perusahaan Otomobil Nasional Berhad is Malaysia’s first national carmaker. Established in 1983 and launched its first model ‘SAGA’ in 1985. The company manufactures, assembles and sells automobiles and automobile related products. Proton bought an 80% stake in Lotus in 1997 which enables them to jointly produce high-performance cars. Proton is controlled by Petroliam Nasional Berhad or PETRONAS, the Malaysian state oil company. Their model line up includes the Iswara, Wira, Satria, Perdana, Putra, and recently, the Gen2.
Elmo: "Word sez Proton's coming out with them new model in '05, something replacing the 'ol Satria"
Fez: "Word? They might as well sell it in China"
by andamofa December 27, 2004
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1. Man cottage cheese has a lot of protons
2. I'll be at the gym in a sec just brewing a proton
by PhoenixWings February 21, 2018
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