# What does coinfinite mean?

I'm reading up on maximal sets and the word "coinfinite" pops up in the first sentence. I tried searching on Wolfram Mathworld as well as Google, but nothing concrete has come up. What does it mean and in what context can it be used?

-
Limited amount of money? ... Less frivolously, I think the suggestion of Gerald Edgar sounds very plausible –  Yemon Choi Sep 14 '10 at 21:07
Coinfinito would mean completely broke. –  Will Jagy Sep 14 '10 at 22:36

Perhaps it means the complement is infinite. Certainly "cofinite" and "cocountable" are used this way.

-
Yes, this is the standard usage. –  Andres Caicedo Sep 14 '10 at 21:08
Thank you, make sense :) –  mahmoudimus Sep 14 '10 at 21:12
Comathematician is a machine for turning cotheorems into fee. –  Victor Protsak Sep 14 '10 at 21:25
On the other hand, 'cofinite volume' usually refers to a quotient space having finite volume. –  Colin Reid Sep 14 '10 at 22:13