(literary) The planet Venus as the daystar.

(Britain, archaic) A self-igniting match, ie. one which could be lit by striking on any surface (as opposed to safety matches which only light against the material on the side of the box).

plural of lucifer

Producing light.

A fluorescent dye used in cell biology.

(simile) Very proud of one's status or person; haughty.

(biochemistry) Any one of a group of enzymes that produce bioluminescence by oxidizing luciferin.

plural of luciferase

(biochemistry) Any of a class of polycyclic heterocycles that are responsible for the bioluminescence of fireflies, being converted to oxyluciferin by luciferase in the process.

plural of luciferin