Definition of nannoplankton
: the smallest plankton that consists of those organisms (such as bacteria) passing through nets of very fine mesh silk cloth
Origin and Etymology of nannoplankton
New Latin, from Greek nanos, nannos dwarf + New Latin plankton plankton
First Known Use: 1912
Seen and Heard
What made you want to look up nannoplankton? Please tell us where you read or heard it (including the quote, if possible).