Webster's New World Medical Dictionary

bee sting, Africanized
A sting from an
Africanized (“killer”) bee, a species of large honey
bees found in South and Central America, as well as
in some parts of the US. This species of bees has an
unusual and dangerous natural defense mechanism
when disturbed. A loud noise or vibration, such as
a barking dog or lawn mower, near a hive may
cause the bees to display aggressive behavior. They
attack in large numbers and for a longer period of
time than is typical of the common European honey
bee. As a result, Africanized bees inflict more stings,
injecting a higher dosage of bee venom into their
victims. See also 
bee sting.
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beef tapeworm
The most common of the large
tapeworms that parasitize people. Beef tapeworm
can be contracted from infected beef that is raw or
rare. Also known as Taenia saginata.
behavior modification
The use of rewards
and/or punishments to encourage desirable behav-
ior.
behavioral disorder
A condition characterized
by undesirable behavior that is within the patient’s
control (for example, substance abuse and antiso-
cial behavior).
behavioral medicine
An interdisciplinary field
of research and practice that focuses on how peo-
ple’s thoughts and behavior affect their health.
Behavioral medicine is concerned, for example,
with undesirable behaviors such as drug abuse, and
utilizes behavior therapy techniques such as
biofeedback, relaxation training, and hypnosis.
behaviorism
The science of studying and modi-
fying animal or human behavior, often through
behavior modification techniques.