Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «E»:
Equinophobia: An abnormal
and persistent fear of horses. Sufferers of equinophobia experience undue anxiety even when a horse is known to be gentle and well trained. They usually avoid horses entirely rather than risk being kicked, bitten or thrown. They may also fear other hoofed animals such as p...
Equol: A substance produced in the intestine as a metabolite of soybeans and soy foods. Equol is a non-steroidal estrogen that acts as an anti-androgen by blocking the hormone dihydrotestosterone. Some people are able to produce equol while others cannot.
Equol is chemically unique among the isoflav...
ER: 1. Emergency room.
2. Endoplasmic reticulum.
3. Estrogen receptor.
4. Extended release.
Erb palsy: A form of brachial plexus palsy in which there is paralysis of the muscles of the upper arm and shoulder girdle due to an injury to the roots of fifth and sixth cervical roots or the upper part of the brachial plexus, a network of spinal nerves that originates in the back of the neck, ext...
Erb paralysis: See: Erb palsy....
Erb's palsy: See: Erb palsy....
ErbB: See: EGFR....
ErbB1: See: EGFR....
ERCP: Endoscopic retrograde cholangiopancreatography....
Erectile dysfunction: A common men's health problem characterized by the consistent inability to sustain an erection sufficient for sexual intercourse or the inability to achieve ejaculation, or both. Impotence can vary. It can involve a total inability to achieve an erection or ejaculation, an inco...
Erection, penile: When the penis fills
with blood and is rigid. The penis contains two chambers, called the corpora cavernosa,
which run the length of the organ, are filled with spongy tissue, and surrounded by a
membrane, called the tunica albuginea. The spongy tissue contains smooth muscles, fibro...
Ergonomics: The science of making things fit people instead
of asking people to fit things. Ergonomics uses knowledge from
anatomy, mechanics, physiology and psychology to utilize human energy
most effectively. Something that is ergonomic is designed for safe, comfortable, and efficient use. For...
Ergophobia: An abnormal and persistent fear of work. Sufferers of ergophobia experience undue anxiety about the workplace environment even though they realize their fear is irrational. Their fear may actually be a combination of fears, such fear of failing at assigned tasks, fear of speaking before ...
Ergot: Ergot could be called a "cereal killer" for it comes from cereals such as rye and wheat and is quite capable of killing someone. A fungus (Claviceps purpurea) that contaminates rye and wheat produces substances (alkaloids) termed ergotamines.
Ergotamines constrict blood vessels and cause the ...