You searched for: “microaerosol”
microaerosol (s) (noun), microaerosols (pl)
A suspension in the air of minute particles: Microaerosol elements range from 1-10 mcm in diameter, are of uniform size, and can easily pass in and out of the respiratory tract.
This entry is located in the following units: aero-, aer-, aeri- (page 12) micro-, micr- (page 1)