Top Definition
A number that is given with very large uncertainties, such that it might be ten or a hundred (or more) times larger or smaller than the value given. Astrophysics is famous for having 'errors in the exponent'
..."We estimate the minimum viable population to be somewhere between 100 and 5000" (extremes from the wikipedia article)

... "in our universe protons decay with a time scale in the range 10^33 - 10^45 years"

These quantities don't have an error in the value, they have an error in the exponent.
by Lab_Monkey July 06, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

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.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×