| hormone receptor assay | A diagnostic test to determine whether a breast cancer's growth is influenced by hormones or if it can be treated with hormones. (09 Oct 1997) |
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| hormone replacement therapy | In females, treatment with sex hormones for a number for reasons, including menopause, partial or full hysterectomy, or amenorrhoea.In women, treatment with sex hormones is indicated for a number of reasons, including menopause, partial or full hysterectomy, or amenorrhoea. After menopause, conjugated oestrogens, estradiol, or estrone sulfate are given to reduce pain during intercourse, limit blood vessel effects, and prevent loss of bone mass. After radical hysterectomy, conjugated oestrogens are given for similar reasons. After menopause or partial hysterectomy, progestin is administered at the same time to offset an increased risk of endometrial cancer. In some amenorrhoeas, oestrogen is given to restore menses; if the therapy is unsuccessful, this may indicate the presence of pathology, for instance, pituitary tumour. Benefits for postmenopausal women include a lowered risk of heart attack (oestrogen lowers LDL and raises HDL levels), and prevention of osteoporosis, since the rate of bone loss is directly linked to a drop in oestrogen levels (see perimenopause). Medical opinion about the hazard posed by such therapy remains divided. Some studies have indicated increased incidence of breast cancer; however, a comprehensive 1992 review of the literature contradicted this finding. (05 Mar 2000) |
| hormone therapy | Treatment which results in the raising or lowering of hormone levels. Changes in levels can effect some breast cancers, those that need hormones for growth. (16 Dec 1997) |
| hormone, aldosterone | Hormone produced by the outer portion (cortex) of the adrenal gland that regulates the balance of water and electrolytes (ions such as potassium and sodium) in the body. Aldosterone encourages the kidney to excrete potassium into the urine and to retain sodium, thereby retaining water. Aldosterone is classified as a mineralocorticoid hormone. (12 Dec 1998) |
| hormone, androgenic | Any hormone that promotes the development and maintenance of male sex characteristics. Testosterone is an androgen. (12 Dec 1998) |
| hormone, cortisol | The primary stress hormone. Cortisol is the major natural glucocorticoid in humans. (12 Dec 1998) |
| hormone, glucocorticoid | A hormone that predominantly affects the metabolism of carbohydrates and,to a lesser extent, fats and proteins (and has other effects). Glucocorticoids are made in the outside portion (the cortex) of the adrenal gland and chemically classed as steroids. Cortisol is the major natural glucocorticoid. The term glucocorticoid also applies to equivalent hormones synthesised in the laboratory. (12 Dec 1998) |
| hormone, human chorionic gonadotropin | A human hormone made by chorionic cells (in the foetal part of the placenta), hcg is directed at the gonads and stimulates them. Hcg becomes detectable (by immunologic means) within days of the time of fertilization. It therefore forms the foundation of most common pregnancy tests. The level of hcg in maternal serum enters as one component in the double and the triple screens used during pregnancy to assign risks of down syndrome and other foetal disorders. (12 Dec 1998) |
| hormone, mineralocorticoid | A group of hormones, the most important being aldosterone, that regulate the balance of water and electrolytes (ions such as sodium and potassium) in the body. The mineralocorticoid hormones act specifically on the tubules of the kidney. (12 Dec 1998) |
| hormone, parathormone | Hormone made by the parathyroid gland (behind the thyroid gland in the neck). Parathormone (pronounced para-thor-mone) is critical to calcium and phosphorus balance. Deficiency of parathormone results in abnormally low calcium in the blood (hypocalcaemia). Also call parathyrin. (12 Dec 1998) |
| hormone, parathyrin | See Hormone, parathormone. (12 Dec 1998) |
| hormone, parathyroid | See Hormone, parathormone. (12 Dec 1998) |
| hormone, progesterone | A female hormone, progesterone is the principal progestational hormone. Progestational hormones prepare the uterus (the womb) to receive and sustain the fertilised egg. (12 Dec 1998) |
| hormone, secretin | Hormone made by glands in the small intestine that stimulates pancreatic secretion. The word hormone was coined by the english physiologists wm. M. Bayliss and ernest h. Starling in connection with their discovery of secretin, the first hormone, in 1902. (12 Dec 1998) |
| hormone, t3 | Triiodothyronine, a thyroid hormone. The number 3 is usually in subscript. (12 Dec 1998) |
| horseshoe crab |
large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse
출처: wordnet.princeton.edu/perl/webwn
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| horsepower |
a unit of power equal to 746 watts
출처: wordnet.princeton.edu/perl/webwn
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| horn fly |
small black European fly introduced into North America; sucks blood from cattle especially at the base of the horn
출처: wordnet.princeton.edu/perl/webwn
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| horned viper |
highly venomous viper of northern Africa and southwestern Asia having a horny spine above each eye
출처: wordnet.princeton.edu/perl/webwn
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| hornet |
large stinging paper wasp
출처: wordnet.princeton.edu/perl/webwn
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| hor | the horizontal stabilizer and elevator in the tail assembly of an aircraft |
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| hor | the quality of being parallel to the horizon |
| hor | in a horizontal direction |
| hor | of or relating to or caused by hormones |
| hor | an endocrine secretion that is transmitted by the blood to the tissue on which it has a specific effect |
| hor | hormones (estrogen and progestin) are given to postmenopausal women |
| hor | hormones (estrogen and progestin) are given to postmenopausal women |
| hor | one of the bony outgrowths on the heads of certain ungulates |
| hor | any outgrowth from the head of an organism that resembles a horn |
| hor | a device on an automobile for making a warning noise |
| hor | a brass musical instrument with a brilliant tone |
| hor | a brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves |