from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to meroplankton
from The Century Dictionary and Cyclopedia
- Swimming in the ocean at one stage of life and passing the rest of life vagrant or sessile on the sea-bottom, as part of the diatoms and Oscellaria, the planktonic fucoids, the metagenetic medusæ, some Turbellaria and annelids, the pelagic larvæ of hydroids and corals, and many helminths, echinoderms, Acalepha, and gastropods.
mero- + planktonic (Wiktionary)