Filtration (fil-tra’shun).  The passage of a liquid through a filter.

Fistula (fis’tu-lah).  A narrow canal or tube left by the incomplete
                      healing of abscesses or wounds and usually
                      transmitting some fluid, either pus or the
                      secretions or contents of some organ or body cavity.

Flaccid (flak’sid).  Weak, lax and soft.

Flatulence (flat’u-lense).  Distended with gas in stomach or bowels.

Flatus (fla’tus).  Gas, especially in the stomach and bowels.

Flexible (flex’ib-l).  That which may be bent without breaking.

Flocculent (flok’u-lent).  Flaky, downy, or wooly.

Flooding (flud’ding).  A copious bleeding from the womb.

Flush (flush).  A redness of the face or neck.

Flux (flux).  An excessive flow of any of the excretions of the body,
             especially feces.

Foetus (fe’tus).  Same as fetus, The child in the womb after the end of
                 third month, called embryo before that time.

Fomentations (fo-men-ta’shun).  Treatment by warm and moist applications to
                               a part to relieve pain or inflammation.

Formula (for’mu-lah).  A prescribed method of preparing a medicine.

Fracture (frak’tur).  The breaking of a part, especially of a bone.

Friction (frik’shun).  The act of rubbing.

Fumigation (fu-mig-a’shun).  Disinfection by exposure to the fumes of a
                            vaporized disinfectant.

Fungus (fung’gus).  Anyone of a class of vegetable organisms of a low order
              of development, including mushrooms, toadstools, moulds, etc.

Function (funk’shun).  The normal, special or proper action or office of
                       any part or organ.

Fundament (fun’da-ment).  The foundation or base of a thing.

Fungous (fung’us).  Of the nature or resembling a fungus.

Galvanization (gal-van-iz-a’shun).  Treatment by galvanic electricity.

Ganglion (gang’le-on).  Any mass of gray nervous substance that serves as a
                       center of nervous influence.

Gangrene (gang’gren).  The mortification or non-molecular death of a part.

Gargle (gar’gle).  A solution used for rinsing the mouth and throat.

Gastric (gas’tric).  Pertaining to the stomach.

Gestation (ges-ta-shun).  Pregnancy.

Gelatinous (gel-at’in-us).  Like jelly or softened gelatine.

Genital (gen’it-al).  Pertaining to the organs of generation or
                     reproduction.

Gland.  An organ that separates any fluid from the blood; or an organ which
        secretes something essential to the system or excretes waste
        materials the retention of which would be injurious to the body.