The SI (International Standard in English) prefix for one "quintillion" or 10^18 or 1,000,000,000,000,000,000. The abbreviated denoted of exa- is E. This prefix is not in wide use since the quantity denoted by it is well beyond most industrial applications.
"Hey, I heard they're coming out with 1 exabyte harddrives next year!"

"No they're not."
by core5 March 30, 2008

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Top Definition
2 door targa topped coupe, released by Nissan in the 80s. It is a mini 300zx if you like.
Cruisin the hood in my Exa, we spotted two pringles, picked them up, and took them for a ride.
by GPexa January 14, 2004

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The Urban Dictionary T-Shirt

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A tidy little 2 door car released by Nissan from the early 80's into the early 90's. Timeless styling that still turns many heads these days. A cult car, yet still unknown to many.
In the days of the VL Commodore, the Big Mac and countless dodgy vehicles. At least Nissan was thinking, and the Exa was born...
by Lonx January 13, 2004

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A gang around California Excelsior Azns mainly in San Francisco.
Black guy 1:Lets jack that nigga
Black guy 2:You fucking crazy they exa people
by calfool March 21, 2006

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt