Webster's New World Medical Dictionary

fluorouracil
An anticancer drug whose chemical
name is 5-fluorouracil (5-FU).
flush 1
A redness of the skin, typically over the
cheeks or neck. A flush is usually temporary and
brought on by excitement, exercise, fever, or
embarrassment. Flushing is an involuntary (uncon-
trollable) response of the nervous system that leads
to widening of the capillaries of the involved skin.
Also referred to as a blush (or, may be used as a
verb). Flushing may also be caused by medications
or other substances that cause widening of the cap-
illaries.
2
To wash out a wound, body area, or
medical device.
fluvastin
A cholesterol-lowering drug (brand
name: Lescol) that is prescribed to prevent medical
problems associated with high cholesterol levels,
such as atherosclerosis and heart disease. Fluvastin
is also used to treat inherited lipid disorders and
similar disorders caused by liver or kidney disease.
FMF
Familial Mediterranean fever.
FMO3
Flavin-containing monooxygenase-3, an
enzyme that is encoded on chromosome 1 and nor-
mally metabolizes trimethylamine. See also 
fish-
odor syndrome.
FMR1
Familial mental retardation 1, the gene that
is responsible for the production of the protein
familial mental retardation protein (FMRP). See
also 
fragile X syndrome.
FMRP
Familial mental retardation protein, the
lack of which results in fragile X syndrome, the most
common inherited cause of mental retardation. See
also 
FMR1; fragile X syndrome.
focused H and P
A medical history (H) and
physical examination (P) that focuses on the
patient’s present problem. For example, if a patient
is complaining of an earache, the physician concen-
trates on the ear rather than doing a complete clin-
ical exam.