Category: V
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Venom
Poison secreted by an animal. A poisonous fluid secreted by some snakes, spiders, or scorpions. A poison in the bite of a snake or insect. Toxic fluid secreted by some snakes and other animals and transmitted in their bites or stings. Some venoms produce local irritation and swelling at the site of the bite or…
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Ventricular septal rupture
Breakage or tear in the septum between the left and right ventricles of the heart.
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Vasopressin
Hormone secreted by the hypothalamus that raises blood pressure, increases peristalsis, and promotes resorption of water by the kidney. Synthetic or prepared extracts are administered as antidiuretics. Also known as antidiuretic hormone (ADH). Antidiuretic hormone (ADH) released by the pituitary. Stimulates water reabsorption by the kidney. A hormone, released by the pituitary gland, that increases…
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Varicocele
Dilation of the complex network of veins that comprise part of the spermatic cord to form a palpable swelling within the scrotum. A condition in which the veins in the scrotum near the testicles are swollen and enlarged. A swelling or enlargement of the veins in the spermatic cord. Swelling of a vein in the…
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Valvotomy
Surgical incision into a valve. A surgical operation to cut into a valve to make it open wider. Incision into a valve to correct a defect and permit its normal function of opening and closing to control the flow of a fluid. An open-heart surgical procedure in which a damaged heart valve is cut in…
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Verbena
A flowering plant which can be used as an herbal tea or, as an essential oil, in fragrances. Available at health food stores. This is a type of plant that belongs to the vervain family. One popular variety of this plant is known as lemon verbena, due to its fragrant aroma. The plant features long,…
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Vervain
A perennial native to tropical or subtropical climates that has small, pale purple flowers. Vervain also known as Verbena. An aphrodisiac, said to ‘secure the favour of the ladies.’ Historically associated with sorcerers and witches. Slightly bitter tisane is of very old usage as a digestive and sedative nightcap.
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Vomit
The expulsion of matter from the stomach via the mouth. Partly digested food which has been brought up from the stomach into the mouth. To expel the contents of the stomach through the esophagus and mouth N. contents of the stomach ejected through the mouth; also called vomitus. To eject the contents of the stomach…
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Virustatic
A substance that inhibits the multiplication of viruses. Stopping the growth of viruses.
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Venous tone
The firmness of the walls of veins.