Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «E»:
Euphoria: Elevated mood. Euphoria is a desirable
and natural occurrence when it results from happy or
exciting events. An excessive degree of euphoria that is
not linked to events is characteristic of hypomania or
mania, abnormal mood states associated with bipolar
disorders. See also bipolar d...
Euploid: The normal number of chromosomes for a species. In humans, the euploid
number of chromosomes is 46 with the notable exception of the unfertilized egg and sperm
in which it is 23. ...
European typhus: See: Typhus, epidemic....
EUS: Endoscopic ultrasound....
Eustachian tube: The tube that runs from the middle ear to the pharynx. The function of the
Eustachian tube is to protect, aerate and drain the middle ear (and mastoid). Occlusion of the
Eustachian tube leads to the development of middle ear inflammation (otitis media). The
Eustachian tube is also c...
Euthanasia:The word "euthanasia" comes straight out of the Greek -- "eu", goodly or well + "thanatos", death = the good death -- and for 18th-century writers in England that was what euthanasia meant, a "good" death, a welcome way to depart quietly and well from life.
The most commonly understood m...
Euthanasia, active: The active acceleration of a "good" death by use of drugs etc, whether by oneself or with the aid of a doctor.
The word "euthanasia" comes from the Greek -- "eu", goodly or well + "thanatos", death = the good death -- and for 18th-century writers in England that was what euthanas...
Euthyroid: The state of having normal thyroid
gland function. As opposed to hyperthyroid (overactive thyroid) and hypothyroid (underactive thyroid)....
Evacuation supplies kit
Evacuation supplies kit: You and your family can cope
best by preparing for disaster before it strikes. One way to prepare
is by assembling a Disaster Supplies Kit. Once disaster hits, you
won't have time to shop or search for
supplies. But if you've gathered supplies in advance, your
family can ...
EVAR: Endovascular aneurysm repair. A procedure to repair an aneurysm of the aorta. In EVAR a stent is placed in the aneurysmal area of the aorta. The procedure is similar to the placement of a stent in a coronary artery after angioplasty.
An aortic aneurysm is a ballooning or widening of the aorta...
Evening primrose oil
Evening primrose oil: A natural source of
essential fatty acids (EFOs). Evening primrose oil contains
a higher level of arachnoidic acid than some other EFO
sources, so people with seizure disorders may wish to avoid
Event: A set of outcomes. Cardiovascular events might include a heart attack and gastrointestinal events a GI bleed. The use of the term "event" in medicine comes from probability theory....
Event, adverse: See: Adverse event....
Evert: To turn outward or turn inside out. To evert the foot is to move its forepart away from the midline of the body. To evert a hollow organ is to turn it inside out.
From the Latin evertere, from e- + vertere, to turn....
Evertor: A muscle that turns a part toward the outside. To evert is to turn outward or turn inside out. From the Latin evertere, from e- + vertere, to turn....