Mindblown: a blog about philosophy.
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Overweight
The term “overweight” is used in two different ways. In one sense it is a way of saying imprecisely that someone is heavy. The other sense of “overweight” is more precise and designates a state between normal weight and obesity. The National Institutes of Health (NIH) now defines overweight in terms of the BMI (the body mass index) which is a…
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Overactive bladder
A sudden involuntary contraction of the muscular wall of the bladder causing urinary urgency, an immediate unstoppable need to urinate. It is a form of urinary incontinence (the unintentional loss of urine) and affects about 1 in 11 adults, particularly older adults. Treatment may include pelvic muscle strengthening, behavioral therapy, and medications. Also called urge incontinence.
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Over-the-counter (OTC) drug
A drug for which a prescription is not needed.
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Ovary
The female gonad, one of a pair of reproductive glands in women. The ovaries are located in the pelvis, one on each side of the uterus. Each ovary is about the size and shape of an almond. The ovaries produce eggs (ova) and female hormones. During each monthly menstrual cycle, an egg is released from one ovary. The…
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Ovarian teratoma
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 within the egg sac (ovary). Being totipotential, that cell can give rise to all orders…
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Ovarian cyst
A fluid-filled sac in the ovary. The most common type of ovarian cyst is called a follicular cyst. It results from the growth of a follicle. A follicle is the fluid-filled cyst that contains an egg. In some cycles, this follicle grows larger than normal and does not rupture to release the egg. Normally it resolves with simple observation…
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Ova
Plural of ovum.
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Ounce
A measure of weight equal to 1/16th of a pound or, metrically, 28.35 grams. The abbreviation for ounce is oz.
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Ototoxicity
Ototoxicity: toxicity (the state of being poisonous or damaging) to the ear. The term ototoxicity is used in medicine to refer to substances, typically medications, which are damaging to the auditory nerve or to the vestibular system of the ear. The effects of an ototoxic substance may be permanent or temporary as well as mild to severe in intensity. Symptoms…
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Otolaryngology
A medical and surgical specialty concerned with the diagnosis, management, and treatment of diseases and disorders of the ear, nose, throat (ENT) and related structures of the head and neck, including the sinuses, larynx (voice box), oral cavity, and upper pharynx (mouth and throat). Subspecialty areas within otolaryngology include pediatric otolaryngology (children), otology/neurotology (ears, balance, and tinnitus), allergy, facial plastic and reconstructive surgery,…
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