gastight
adjective
gas·tight ˈgas-ˈtīt 
: impervious to gas
gastightness noun
Word History
First Known Use
1831, in the meaning defined above
- aldehydic
- aldehydine
- aldehydo
- Alden
- alder
- alder blight
- alder flea beetle
- alder flycatcher
- alder-leaved buckthorn
- alder-leaved dogwood
- Alderamin
- alderflies
- alderfly
- alderliefest
- alderman
- alderman lizard
- aldermancies
- aldermaness
- aldermanesses
- aldermanic
- aldermanly
- aldermanry
- aldermanships
- aldermen
- Alderney