Giving off or reflecting light readily or in large amounts
A luminous warmth seems to enfold me.
The name "firefly" is often applied also to luminous beetles of the family Lampyridae, to which the well-known glow-worm belongs.
Luminous organs are described by H.
the pale envelope, for oxidation, and the luminous portion, for reduction.
These forces have the same period and direction as the undisturbed luminous vibrations themselves.