A suspension in air of particles that are submicronic or, more frequently, from 1 to 10 um in diameter. ... (05 Mar 2000) ... 
Type: Term Pronunciation: mī′krō-ār′ō-sol Definitions: 1. A suspension in air of particles that are submicronic or, more frequently, from 1-10 mcm in diameter.
microaerosol A suspension in the air of minute particles.