people who are believed to belong to the same genetic stock; "some biologists doubt that there are important genetic differences between races of human beings"
compete in a race; "he is running the Marathon this year"; "let's race and see who gets there first"
cause to move fast or to rush or race; "The psychologist raced the rats through a long maze"
to work as fast as possible towards a goal, sometimes in competition with others; "We are racing to find a cure for AIDS"
a swinging or sliding barrier that will close the entrance to a room or building or vehicle; "he knocked on the door"; "he slammed the door as he left"
a room that is entered via a door; "his office is the third door down the hall on the left"
a structure where people live or work (usually ordered along a street or road); "the office next door"; "they live two doors up the street from us"
anything providing a means of access (or escape); "we closed the door to Haitian immigrants"; "education is the door to success"
(chemistry) a surface forming a common boundary between two things (two objects or liquids or chemical phases)
(computer science) computer circuit consisting of the hardware and associated circuitry that links one device with another (especially a computer and a hard disk drive or other peripherals)
the overlap where two theories or phenomena affect each other or have links with each other; "the interface between chemistry and biology"
(computer science) a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the system