蛍

fluorescence

fluorescent lamp

firefly (Luciola cruciata)

fluorescent substance

fluorescent substance

sea firefly (Vargula hilgendorfii)

vacuum fluorescent tube

fluorite

fluorescent tube

fluorescent dye

fluorescent color

fluorescent dye

flying firefly

fluorescent ink

Auld Lang Syne

highlighter (pen)

fluorescent screen

glow of a firefly

fluorescent whitening agent

fluorescent paint

green fluorescent protein

the fruit of diligent study

dayflower

bellflower

diligence in studying (e.g. continuing to study even in such poor light as offered by a firefly or that reflected by snow)

fluorescence microscope

Hotaria parvula (species of firefly)

empty vessels make the most noise

Pidorus glaucopis (species of moth)

firefly watching

firefly squid (Watasenia scintillans)

Scirpus hotarui (species of bulrush)