1. Noun
That which shines at night; -- a fanciful name for phosphorus.
2. Noun
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 Noctilucae.
3. Noun
large bioluminescent marine protozoan
Vocabulary classified under Nature and environment
More about this word
Synonyms and related words
Explore this word