You searched for: “aeorplankton”
aeroplankton (s) (noun), aeorplankton (pl)
An organism or a substance that is carried by air; aerial plankton: Aeroplankton, such as bacteria, pollen grain, etc., are suspended freely in the air and are dispersed by wind currents.
Aeroplankton is a collective name for all forms of minute or tiny organic life drifting in the air. It is also an equivalent of oceanic plankton.