hydrolocking
hydrostatic lock
threadlock
threadlocker
lockage
clack valve
angler's loop
elastohydrodynamics
clapper valve
clack
fankle
water gate
tail gate
waterproofness
seacock
watertightness
occlusion
diff lock
block
flash lock
locker
stop
stopcock
stoppage
blockage
bolt
closure
pilot valve
hydrosalpinx
limb
surface tension
negative side waterproofing
interlockability
differential lock
semicircular canal
gate valve
reductisol
flapper valve
snaphaan
microinterlocking
bungee
positive side waterproofing
lake
bungee cord
padlock
stopper
sparge pipe
damming
trap
draintrap