Webster's New World Medical Dictionary

foodborne disease
See 
food poisoning.
foot 1
The extremity at the end of the leg, with
which a person stands and walks. The foot is a com-
plex structure, made up of dozens of bones that
work together with muscles and tendons to execute
precise movements. The bones of the foot include
the 10 metatarsals and the 28 phalanges (toe
bones).
2
As a measurement, 12 inches, or one-
third of a yard. The foot was originally the length of
a man’s foot, and it served as a measurement of
land. Abbreviated ft.
foot, athlete’s
See 
athlete’s foot.
foot drop brace
See 
ankle-foot orthosis.
foot fungus
See 
athlete’s foot.
footling birth
A foot- or feet-first birth. A
footling birth is called single-footling or double-
footling, depending on whether the presenting part
of the baby at delivery is just one foot or both feet.
Also known as footling presentation.
footling presentation
See 
footling birth.
foramen
A natural opening. Although a foramen
is usually through bone, it can be an opening
through other types of tissue, as with the foramen
ovale in the heart. The plural of foramen is foramina.
foramen, interventricular
An opening between
the lateral and third ventricles in the brain.
foramen magnum
The large hole at the base of
the skull that allows passage of the spinal cord.
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foramen magnum
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foramen of Magendie
An opening from the
fourth ventricle in the brain to the central canal of
the upper end of the spinal cord.
foramen ovale
An oval opening between the two
upper chambers of the heart (the atria) that is a
normal feature of fetal and newborn circulation.
The foramen ovale normally closes by 3 months
of age.