airtight
Concise Oxford English Dictionary © 2008 Oxford University Press:
airtight/ˈeətʌɪt/
▶adjective not allowing air to escape or pass through.
'airtight' also found in these Oxford entries:
gas chamber
- hermetic
- humidor
- Kilner jar
- Mason jar
- pressure cooker
- sealant
- silage
- silo
- tin

