1 [NEW!] Sports vocabulary : Words for popular American sports. [ 2 NEW!] Air Travel: Useful words for traveling on airplanes and through airports. 3  The Environment: Vocabulary related to environmental science and climate change.  Family members: Relatives and other important people.
diffusion coefficient see diffusion coefficient. coefficient of digestibility the proportion of a food that is digested compared to what is absorbed, expressed as a percentage. dilution coefficient a number that expresses the effectiveness of a disinfectant for a given organism.
diffusion coefficient. the number of milliliters of a gas that will diffuse at a distance of 0.001 mm over a square centimeter surface per minute, at 1 atmosphere of pressure. The diffusion coefficient for any given gas is proportional to the solubility and molecular weight of the gas.