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.
Air Film Coefficient. Air Film Coefficient is a method to account for the heat transfer of the thin layer of still air on the surface of structure. This thin layer or Air Film has some thermal resistance. The Air Film Coefficient is a number used in calculating the heat transfer through a structure. There is a coefficient for the outside and inside surface. Home Energy Reference & Encyclopedia (HERE) is a free resource for any professional involved in residential energy analysis or home performance evaluations.