Solarus, I'm not sure who you were asking about their definition of race, but plain & simple, I believe race is any group of people having particular characteristics in common. Normally, this group of people are united or classified together on the basis of common history, nationality, or geographic distribution.
I'm sure more detail could be added to this description or definition of race, but this is just my 2 cents.
"I'm so hardcore niggaz take me for granite". - Spontaneous
"if underground means not being exposed, better go on and get your naked ass some clothes" - Dela Soul