Definition of photophore
: a light-emitting organ; especially : one of the luminous spots on various marine mostly deep-sea fishes
Origin of photophore
International Scientific Vocabulary
First Known Use: 1898
Learn More about photophore
Britannica.com: Encyclopedia article about "photophore"
Seen and Heard
What made you want to look up photophore? Please tell us where you read or heard it (including the quote, if possible).