A Brief Definition of Race

Just off the top of my head, more or less.

Race: A branch of humanity that is, in general, more genetically similar to each other (more genetic kinship) than with other groups, and that have, in general, a greater number of most common recent ancestors with each other than with other groups. Races also, in general, tend to share a constellation of phenotypic characteristics than, in toto, distinguish them from other groups. Layered upon these biological characteristics (biological race) are the historical and cultural components that contribute to racial identity and which influence, and are influenced by, the aforementioned biological characteristics.