medical science: the science of dealing with the maintenance of health and the prevention and treatment of disease
life science: any of the branches of natural science dealing with the structure and behavior of living organisms
planck's law: (physics) the basis of quantum theory; the energy of electromagnetic waves is contained in indivisible quanta that have to be radiated or absorbed as a whole; the magnitude is proportional to frequency where the constant of proportionality is given by Planck's constant