definition of "Genome"

[Andrea Crampton]

Hi!
Can anyone give me a good definition of the word genome.there seems to 
be some conflicting fews floating around.  Does it refer solely to the 
haploid chromosome content when refering to eukaryotes or can it 
include the diploid content......? Also should mitochondrial DNA be 
include in the description of an organisms genome??? (i am of the 
bbelief that it is not)

Thanks for your input in this matter
Andrea