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Hormone   Listen
Hormone  n.  
(Physiological Chem.) A chemical substance formed in one organ and carried in the circulation to another organ on which it exerts a specific effect on cells at a distance from the producing cells; thus, pituitary hormones produced in the brain may have effects on cells in distant parts of the body..
(Physiological Chem.) A chemical substance, whether natural or synthetic, that functions like a hormone in a living organism. Thus, synthetic steroid hormones may be more effective than their natural counterparts.
(Bot.) A substance that controls growth rate or differentiation in plants; also called phytohormone. The most well-known are the auxins that stimulate growth at the growing tips of plants, and control root formation and the dropping of leaves; and the gibberellins, which are used in agriculture to promote plant growth.

Collaborative International Dictionary of English 0.48

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"Hormone" Quotes from Famous Books

... apples, any of you apple growers well know that the Golden Delicious and York Imperial grow crops in alternate years. Now, you come along with hormone sprays and take half or two-thirds of the young fruits off soon after the trees blossom and throw them into regular production. That's the same thing that you are talking about, Mr. Stoke. I never heard of anybody thinning walnuts. I don't know whether they do or not. ...
— Northern Nut Growers Association Report of the Proceedings at the 43rd Annual Meeting - Rockport, Indiana, August 25, 26 and 27, 1952 • Various

Words linked to "Hormone" :   corticotrophin, thyrotrophic hormone, parathormone, thyrotropic hormone, epinephrine, melanocyte-stimulating hormone, antidiuretic hormone, hormonal, human growth hormone, lactogenic hormone, glucagon, oxytocin, thyroid hormone, MSH, Adrenalin, somatotropin, gastrointestinal hormone, thyrotropin-releasing factor, TRF, parathyroid hormone, releasing hormone, gonadotropic hormone, gonadotrophin, hypothalamic releasing hormone, follicle-stimulating hormone, thyroid-stimulating hormone, catecholamine, thyrotropin-releasing hormone, rh, ACTH, protirelin, GI hormones, hormone replacement therapy, thyrotrophin, growth hormone, adrenocorticotropin, epinephrin, steroid, luteinizing hormone, hypothalamic releasing factor, vasopressin, relaxin, steroid hormone, TSH, Pitressin, somatotropic hormone, ADH, endocrine, adrenocorticotrophic hormone, Pitocin, insulin, gonadotropin, hormone-replacement therapy, glucocorticoid, growth hormone-releasing factor, sex hormone, corticotropin, internal secretion, plant hormone, adrenocorticotropic hormone, thymosin, STH, secretion, adrenosterone, somatotrophic hormone, androgenic hormone, adrenaline, TRH, interstitial cell-stimulating hormone, adrenocorticotrophin, melatonin, thyrotropin, releasing factor

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