fluorescent lamp; fluorescent light; person who is slow to react; someone slow on the uptake
glow of a firefly; nearly extinguished fire; embers
fluorescent color; fluorescent colour
diligence in studying (e.g. continuing to study even in such poor light as offered by a firefly or that reflected by snow); diligent study
the fruit of diligent study
fluorescent substance; phosphor
fluorescent dye; fluorescent pigment; fluorochrome
green fluorescent protein; GFP
fluorescent whitening agent; fluorescent brightener; fluorescent bleach