Genetic drift is the term used in population genetics to refer to the statistical drift over time of gene frequencies in a population due to random sampling effects in the formation of successive generations. (sciencedaily.com)
The system worked well enough on roads with wider lanes, but got annoying on smaller, back country roads when drifting over the center line is a common occurrence. (topspeed.com)
If a tsunami were to hit the plant and send a radioactive cloud drifting over the hills, I would be ordered to leave my home. (discovermagazine.com)