Definitions for hormone
ˈhɔr moʊnhor·mone

Princeton's WordNetRate this definition:5.0 / 1 vote

1. hormone, endocrine, internal secretionnoun

   the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect

GCIDERate this definition:2.0 / 1 vote

1. Hormonenoun

   (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.

2. Hormonenoun

   (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.

3. Hormonenoun

   (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..

WiktionaryRate this definition:3.0 / 1 vote

1. hormonenoun

   Any substance produced by one tissue and conveyed by the bloodstream to another to effect physiological activity.

2. hormonenoun

   A synthetic compound with the same activity.

3. hormonenoun

   Any similar substance in plants.

WikipediaRate this definition:0.0 / 0 votes

1. Hormone

   A hormone (from the Greek participle ὁρμῶν, "setting in motion") is a class of signaling molecules in multicellular organisms that are sent to distant organs by complex biological processes to regulate physiology and behavior. Hormones are required for the correct 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. Among the substances that can be considered hormones, are eicosanoids (e.g. prostaglandins and thromboxanes), steroids (e.g. oestrogen and brassinosteroid), amino acid derivatives (e.g. epinephrine and auxin), protein or peptides (e.g. insulin and CLE peptides), and gases (e.g. ethylene and nitric oxide). Hormones are used to communicate between organs and tissues. In vertebrates, hormones are responsible for regulating a variety of physiological processes and behavioral activities such as digestion, metabolism, respiration, sensory perception, sleep, excretion, lactation, stress induction, growth and development, movement, reproduction, and mood manipulation. In plants, hormones modulate almost all aspects of development, from germination to senescence.Hormones affect distant cells by binding to specific receptor proteins in the target cell, resulting in a change in cell function. When a hormone binds to the receptor, it results in the activation of a signal transduction pathway that typically activates gene transcription, resulting in increased expression of target proteins. Hormones can also act in non-genomic pathways that synergize with genomic effects. Water-soluble hormones (such as peptides and amines) generally act on the surface of target cells via second messengers. Lipid soluble hormones, (such as steroids) generally pass through the plasma membranes of target cells (both cytoplasmic and nuclear) to act within their nuclei. Brassinosteroids, a type of polyhydroxysteroids, are a sixth class of plant hormones and may be useful as an anticancer drug for endocrine-responsive tumors to cause apoptosis and limit plant growth. Despite being lipid soluble, they nevertheless attach to their receptor at the cell surface.In vertebrates, endocrine glands are specialized organs that secrete hormones into the endocrine signaling system. Hormone secretion occurs in response to specific biochemical signals and is often subject to negative feedback regulation. For instance, high blood sugar (serum glucose concentration) promotes insulin synthesis. Insulin then acts to reduce glucose levels and maintain homeostasis, leading to reduced insulin levels. Upon secretion, water-soluble hormones are readily transported through the circulatory system. Lipid-soluble hormones must bond to carrier plasma glycoproteins (e.g., thyroxine-binding globulin (TBG)) to form ligand-protein complexes. Some hormones, such as insulin and growth hormones, can be released into the bloodstream already fully active. Other hormones, called prohormones, must be activated in certain cells through a series of steps that are usually tightly controlled. The endocrine system secretes hormones directly into the bloodstream, typically via fenestrated capillaries, whereas the exocrine system secretes its hormones indirectly using ducts. Hormones with paracrine function diffuse through the interstitial spaces to nearby target tissue. Plants lack specialized organs for the secretion of hormones, although there is spatial distribution of hormone production. For example, the hormone auxin is produced mainly at the tips of young leaves and in the shoot apical meristem. The lack of specialised glands means that the main site of hormone production can change throughout the life of a plant, and the site of production is dependent on the plant's age and environment.

ChatGPTRate this definition:0.0 / 0 votes

1. hormone

   A hormone is a chemical substance produced in the body that controls and regulates the activity of certain cells or organs. These substances are often secreted by special glands, such as the thyroid or adrenal glands, and are transported by body fluids to different parts of the body to stimulate specific actions or responses, like growth, metabolism, sexual function, reproduction, mood, and more.

WikidataRate this definition:4.0 / 1 vote

1. Hormone

   A hormone is a chemical released by a cell, a gland, or an organ in one part of the body that affects cells in other parts of the organism. Generally, only a small amount of hormone is required to alter cell metabolism. In essence, it is a chemical messenger that transports a signal from one cell to another. All multicellular organisms produce hormones; plant hormones are also called phytohormones. Hormones in animals are often transported in the blood. Cells respond to a hormone when they express a specific receptor for that hormone. The hormone binds to the receptor protein, resulting in the activation of a signal transduction mechanism that ultimately leads to cell type-specific responses. Endocrine hormone molecules are secreted directly into the bloodstream, typically into fenestrated capillaries. Hormones with paracrine function diffuse through the interstitial spaces to nearby target tissues. A variety of exogenous chemical compounds, both natural and synthetic, have hormone-like effects on both humans and wildlife. Their interference with the synthesis, secretion, transport, binding, action, or elimination of natural hormones in the body can change the homeostasis, reproduction, development, and/or behavior, just as endogenously produced hormones do.

Editors ContributionRate this definition:0.0 / 0 votes

1. hormone

   A type of matter naturally cocreated by a living organism and naturally created in moderate amounts within the body of an animal or human being.

   Both animals and human beings naturally create their hormones essential for growth, regulation with their bodies in moderate amounts.

   
   

   Submitted by MaryC on January 30, 2020  

Anagrams for hormone »

1. moorhen

How to pronounce hormone?

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How to say hormone in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of hormone in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of hormone in Pythagorean Numerology is: 7

Examples of hormone in a Sentence

1. Waljit Dhillo:

   So many people say to themselves, ‘It’s just me. I’ve got a problem.’ But actually, HSDD may be how your brain is wired, the biology is telling us there’s increased activation of inhibitory areas in the brain — the same areas that tell us it’s not OK to walk around in public naked — and those areas are switching off sexual desire. How can we tackle that? We give a hormone that would naturally give you increased sexual desire, essentially hijacking the normal system.

2. Charlie Hall:

   Your cortisol levels go down dramatically when you're in the midst of gardening, and cortisol is the stress hormone in your body, so you're less stressed.

3. Raj Dasgupta:

   The' g' in ghrelin stands for gain : This fast-acting hormone increases hunger and leads to weight gain.

4. Julia Brody:

   One great way to reduce your own breast cancer risk is to stay physically active, in addition, women can minimize their exposures to a range of chemicals that are hormone disruptors or carcinogens by keeping house dust levels low and choosing products with safer ingredients.

5. David Reynolds:

   While this large study suggests that women who received some forms of hormone therapy were slightly more likely to be diagnosed with Alzheimer's, it doesn't show that hormone therapy is responsible for this increased risk.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=hormone
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=hormone
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Hormone
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hormone
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=hormone