Webster's New World Medical Dictionary

indifferent gonad
See 
gonad, indifferent.
indigestion
See 
dyspepsia.
induced menopause
See 
menopause, induced.
induction therapy
The first in a series of thera-
peutic measures taken to treat a disease, typically a
cancer. The induction therapy, for example, in acute
leukemia is the initial chemotherapy designed to
bring about a remission.
infant
A young baby, from birth to 12 months of
age.
infant mortality rate
The number of children
dying at less than 1 year of age, divided by the num-
ber of live births that year.
infantile genetic agranulocytosis
See 
agranu-
locytosis, infantile genetic.
infantile hip dislocation
See 
congenital hip
dislocation.
infantile hypothyroidism
See 
hypothyroidism,
infantile.
infantile myxedema
See 
hypothyroidism,
infantile.
infantile paralysis
See 
polio.
infarct
An area of tissue death that is due to a
local lack of oxygen.
infarction
The formation of an infarct, an area of
tissue death, due to a local lack of oxygen.
infarction, acute myocardial
See 
heart attack.
infection
The invasion and multiplication of
microorganisms such as bacteria, viruses, and para-
sites that are not normally present within the body.
An infection may cause no symptoms and be sub-
clinical, or it may cause symptoms and be clinically
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infection
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apparent. An infection may remain localized, or it
may spread through the blood or lymphatic vessels
to become systemic (bodywide). Microorganisms
that live naturally in the body are not considered
infections. For example, bacteria that normally live
within the mouth and intestine are not infections.