Word of the Week
precision /pre-siz-shun/ (noun)
1. the degree of agreement among several measurements
the number of moles of solute per liter of solution
distillation \DIS-til-a-shun\ (noun)
1. Separation of a mixture by difference in boiling points of the components.
The useful materials from crude oil, such as jet fuel, gasoline, and asphalt, are separated by distillation.