Phytoplankton
Origin
From Ancient Greek φυτόν (phuton, "plant") + πλαγκτόν, neuter of πλαγκτός (planktos, "wandering"). However, they are no longer classified as plants, so the terminology is showing a historical meaning.
From Ancient Greek φυτόν (phuton, "plant") + πλαγκτόν, neuter of πλαγκτός (planktos, "wandering"). However, they are no longer classified as plants, so the terminology is showing a historical meaning.