Noctiluca

n.	1.	(Old Chem.) That which shines at night; - a fanciful name for phosphorus.
	2.	(Zool.) A genus of marine flagellate Infusoria, remarkable for their unusually large size and complex structure, as well as for their phosphorescence. The brilliant diffuse phosphorescence of the sea is often due to myriads of Noctilucæ.

Noun

1.

noctiluca - large bioluminescent marine protozoan Synonyms: Noctiluca miliaris

dinoflagellate, genus Noctiluca, Noctiluca miliaris