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hormone    音標拼音: [h'ɔrm,on]
n. 荷爾蒙

荷爾蒙

hormone
n 1: the secretion of an endocrine gland that is transmitted by
the blood to the tissue on which it has a specific effect
[synonym: {hormone}, {endocrine}, {internal secretion}]

Hormone \Hor"mone\ (h[^o]r"m[=o]n), n. [From Gr. "orma`ein to
excite.]
1. (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..
[Webster 1913 Suppl. PJC]

2. (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.
[PJC]

3. (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.
[PJC]

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英文字典中文字典相關資料:
  • Hormone - Wikipedia
    Hormones are required for the normal development of animals, plants and fungi Due to the broad definition of a hormone (as a signaling molecule that exerts its effects far from its site of production), numerous kinds of molecules can be classified as hormones
  • Hormones | Endocrine Glands | MedlinePlus
    Hormones are your body's chemical messengers They affect many processes including mood Too much or too little of a certain hormone can have health implications
  • Hormones and the Endocrine System | Johns Hopkins Medicine
    Consider the following hormones and their role in the workings of the endocrine system: Controls production of sex hormones (estrogen in women and testosterone in men) and the production of eggs in women and sperm in men
  • Are your hormones imbalanced? Doctors explain how to know if . . .
    Do you know what your hormone levels are? Should you? Your body is home to more than 50 hormones — chemical messengers that compose the endocrine system — and hormonal changes may reflect any
  • What are hormones? Types, functions, and imbalances
    Hormones are chemical messengers that send a signal to one or more tissues or organs in the body They are part of the endocrine system, and the study of this system is known as endocrinology
  • What are Hormones? - News-Medical. net
    Beta cells within the pancreas synthesize and secrete insulin, a peptide hormone that regulates various metabolic processes, the most notable of which is controlling glucose levels
  • You and Your Hormones
    Our video collection providing practical information on hormones and endocrine conditions, created in collaboration with expert endocrinologists "They can rule our lives and shape our destinies Hormones are fundamental to making us who we are" - Professor John Wass, clinical endocrinologist





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