race 1 (rās)
1. A group of people identified as distinct from other groups because of supposed physical or genetic traits shared by the group. Most biologists and anthropologists do not recognize race as a biologically valid classification, in part because there is more genetic variation within groups than between them.
2. A group of people united or classified together on the basis of common history, nationality, or geographic distribution: the Celtic race.
3. A genealogical line; a lineage.
4. Humans considered as a group.
a. A usually geographically isolated population of organisms that differs from other populations of the same species in certain heritable traits: an island race of birds.