jpdb beta

filtration; filtering; percolation

strainer; colander; filter

unfiltered (alcohol)

filter paper

filtered water; drainage

virus

filtrate

filtrand; filter residue; residue

paper chromatography

paper electrophoresis

glaucoma filtration surgery

ultrafiltration

water filter

filter bed

filter press

filter; wave filter

wort filtration; lautering; sparging

filter paper disk

parafollicular cell

Graafian follicle

follicle (esp. an ovarian follicle)