zooxanthella(redirected from Zoozanthellae)
Also found in: Medical.
n. pl. zo·o·xan·thel·lae (-thĕl′ē)
Any of various yellow-brown photosynthetic dinoflagellates that live symbiotically within the cells of other organisms, especially certain corals and other marine invertebrates.
(Biology) any of several yellow-green algae that inhabit other organisms such as marine invertebrates