aer·o·sol 
(ârə-sôl′, -sŏl′)
(ârə-sôl′, -sŏl′)n.
1. A gaseous suspension of fine solid or liquid particles.
2.
a. The spray of fine particles of a substance, such as paint, asthma medication, or insecticide, that is released from an aerosol can.
b. An aerosol can.
[AERO- + SOL(UTION).]