aroma, aura, breath, definite odor, detectable odor, diffusion, discharge, dispersion, ectoplasm, ectoplasy, effluvium, emergence, emersion, emission, essence, exhalation, exteriorized protoplasm, extrusion, flavor, fragrance, fume, highlight, illumination, irradiance, irradiancy, irradiation, issuance, issue, light, light source, luminous energy, odor, photosensitivity, radiance, radiancy, radiant energy, radiation, radius, ray, redolence, savor, scattering, scent, sidelight, smell, spoke, spoor, stench, subtle odor, surfacing, trace, trail, vent, visible radiation, whiff