invisible
unseeable
X-ray
acoustic
actinic
ambient
astrophysical
cathode
electro-magnetic
fish-oil
fluorescence
fluorescent
gamma
green-shaded
halogen
hand-held
high-energy
high-intensity
high-resolution
infra-ray
infrared
kev
microwave
near-infrared
neutrino
short-wave
solar
synchrotron
tachyon
thermal
ultrared
ultrasonic
uvb
vehicle-mounted
visible-light
wavelength
wing-like
Violet
inviolate
violet