Dictionary (n.) The measurement of the properties and intensity of light\.Thesaurus actinology actinometry aerial photography aeroballistics aerodynamics aerogeology aerography aerology aeromechanics aeromedicine aerometry aeronautical meteorology aerophotography aerophysics aeroscopy aerospace research aerostatics aviation technology avionics catoptrics climatology dioptrics geometrical optics heliography heliology heliometry hydrostatics kinematics kinetics meteorology optics photics photology physical optics pneumatics rocketry supersonics |