See Also: Lock or Lock-in - Motor Sports(gambling)
lock(2)(dictionary)
Lock-out(money)
Lock-up CDs(money)
Lock(money)
air lock(dictionary)
LOCK(finance)
Lock out(finance)
Lock up CDs(finance)
lock(3)(dictionary)

air lock (oh)



n [C]
a small room used for moving between two places that do not have the same air pressure, for example in a spacecraft
a small amount of air in a pipe that stops liquid flowing through it