bolter
clarifier
cradle
cribble
cribriformity
cribrosity
filter
grate
grating
honeycomb
lixiviator
net
percolator
porosity
porousness
purifier
refiner
refinery
riddle
rocker
screen
sieve
sievelikeness
sifter
sorter
sponge
strainer
winnow
winnowing basket
winnowing fan
winnowing machine
cheesecloth
cullender
mash
reheat
Hollander