Plankton

Definitions

1. Organisms, especially small and microscopic ones, that drift in water.
   uncountable, usually
2. A plankter, any single organism that drifts in water.
   countable, usually

Equivalents

Examples

“Whales feed⟳ on tiny plankton drifting in the ocean.”

“The lake water was full of microscopic plankton.”

“The study⟳ focused on the role of plankton in the food chain.”

CEFR level