Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «T»:
Tension, intravenous: The pressure of the blood within a vein, the
Tent, oxygen: A tent-like device used to deliver high levels of oxygen to a patient in a bed. The tent typically covers the whole bed of an infant and the head and upper body of an older child or adult. The oxygen is pumped in from a tank.
Oxygen is a colorless, odorless and tasteless gas that makes...
Tenth cranial nerve
Tenth cranial nerve: The tenth cranial nerve, and one of the most important, is the vagus nerve. All twelve of the cranial nerves, the vagus nerve included, emerge from or enter the skull (the cranium), as opposed to the spinal nerves which emerge from the vertebral column. The vagus nerve origina...
ter in die (on prescription)
ter in die (on prescription): Seen on a prescription, tid means three times a day. It is an
abbreviation for "ter in die" which in Latin means three
times a day. The
abbreviation "tid" is sometimes written without a period
lower-case letters as "tid" or in capital letters as
"TID" or wi...
Teratogen: Any agent that can disturb the
development of an embryo or fetus. Teratogens may cause a birth defect in the child. Or a teratogen may halt the
pregnancy outright. The classes of teratogens include radiation,
maternal infections, chemicals, and drugs.
Drugs known to be capable of acti...
Teratogen, coumadin as
Teratogen, coumadin as: The anticoagulant ("blood-
thinner") coumadin is a known teratogen, an agent that can disturb
the development of the embryo and fetus and lead to birth defects.
Coumadin taken by a woman during pregnancy can cause bleeding
into the baby's brain (cerebral hemorrhage), und...
Teratogen, Ecstasy as
Teratogen, Ecstasy as: Ecstasy is an illicit drug considered a recreational or party drug. It acts as both a stimulant and a hallucinogen. The chemical name is methylenedioxymethamphetamine (MDMA).
Ecstasy is considered a possible teratogen, an agent that can disturb the development of the embryo or...
Teratogen, warfarin as
Teratogen, warfarin as: The anticoagulant warfarin
(COUMADIN) is a known teratogen, an agent that can disturb the
development of the embryo and fetus and lead to birth defects.
Warfarin taken by a woman during pregnancy can cause bleeding into
the baby's brain (cerebral hemorrhage), underdevelop...
Teratogenic: Able to disturb the growth and development of an embryo or fetus. See also: Teratogen and Teratogenic drugs....
Teratogenic drugs: A teratogen is an agent that can disturb
the development of the embryo or fetus. Teratogens halt the pregnancy
or produce a congenital malformation (a birth defect). Classes of
teratogens include radiation, maternal infections, chemicals, and
Drugs that are capable of ...
Teratoma: A type of germ cell tumor that may contain several different types of tissue and sometimes mature elements such as hair, muscle, and bone. Teratomas occur most often in the ovary, testis, and in the sacrococcygeal region (near the tailbone) in children. A teratoma may be benign or malignan...
Teratoma, ovarian: Also called a dermoid cyst of the
ovary, this is a bizarre tumor, usually benign, in the ovary that
typically contains a diversity of tissues including hair, teeth,
bone, thyroid, etc.
A dermoid cyst develops from a totipotential germ cell (a primary
oocyte) that is retained...
Teratophobia: Fear of bearing a malformed child. A phobia
is an unreasonable sort of fear that can cause avoidance and panic.
Phobias are a relatively common type of anxiety disorder. Phobias can
be treated with cognitive behavioral therapy using exposure and fear
reduction techniques. In many c...
Teres minor muscle
Teres minor muscle: A muscle that assists the lifting of the arm during outward turning (external rotation) of the arm.
The tendon of the teres minor muscle is one of four tendons that stabilize the shoulder joint and constitute the rotator cuff. Each of these four tendons hooks up to a muscle that...
Terminal ileitis: Crohn's disease, a
chronic inflammatory disease of the intestine involving only the end of the small
intestine (the terminal ileum). Crohn's disease affects primarily the small and large
intestines but which can occur anywhere in the digestive system between the mouth and the