Author: Glossary
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Two-way interactive television
A means of telecommunication used to link two geographically distant sites via real-time audio and visual media.
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Two-point discrimination test
A test of cutaneous sensation involving determination of the ability of the patient to detect that the skin is being touched by two pointed objects at once. It is used to determine the degree of sensory loss following disease or trauma affecting the nervous system.
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Twinrix
Hepatitis A inactivated, and hepatitis B (recombinant) vaccine.
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Twinning of teeth
A dental anomaly in which two teeth are joined together.
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Twinning
Delivery of or producing twins.
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Parasitic twins
The smaller of a pair of conjoined twins, when there is a marked disparity in size.
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Interlocked twins
Twins in which the neck of one becomes interlocked with the head of the other, making vaginal delivery impossible.
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Impacted twins
Twins so entwined in utero as to prevent normal delivery.
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Growth discordant twins
The unequal growth of twins while in utero. The smaller twin is at greater risk of having congenital anomalies than is the normal birth-weight twin.
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Twelve-item short-form health survey
An abbreviated version of the Medical Outcomes Study 36-Item Short-Form Health survey.