gas cloud
/ˈɡas ˌklaʊd/noun
1 Astronomy. A mass of gaseous material in space; specifically one from which a planet, solar system, or other celestial object is formed.
2A coherent mass of (especially harmful) gas or gaseous material released into the air, e.g. from a volcano, leaking gas pipe, etc.; especially a mass of poison gas released in a gas attack.
Origin
Late 19th century. From gas + cloud.
- flagellum
- flageolet
- flagfall
- flagfish
- flag-flying
- flag football
- flagged
- flagger
- Flagg, James Montgomery
- flagitious
- flagitiously
- flagitiousness
- Flagler, Henry Morrison
- flag lieutenant
- flagman
- flag of convenience
- flag officer
- flag of truce
- flagon
- flagon wagon
- flagpole
- flagrancy
- flag rank
- flagrant
- flagrantly