also bio-luminescent, "emitting light," of living organisms, 1929, from bioluminescence + -ent.
Entries linking to bioluminescent
bioluminescence n.
also bio-luminescence, "emission of light by living organisms," 1909; see bio- + luminescence.
-ent
word-forming element making adjectives from nouns or verbs, from French -ent and directly from Latin -entem (nominative -ens), present-participle ending of verbs in -ere/-ire. Old French changed it in many words to -ant, but after c. 1500 some of these in English were changed back to what was supposed to be correct Latin. See -ant.