What does retinol mean?

Definitions for retinol
ˈrɛt nˌɔlretinol

This dictionary definitions page includes all the possible meanings, example usage and translations of the word retinol.

Princeton's WordNet

  1. vitamin A1, retinolnoun

    an unsaturated alcohol that occurs in marine fish-liver oils and is synthesized biologically from carotene


  1. Retinolnoun

    One of the compounds which function as vitamin A. Called also vitamin A, vitamin A1 and vitamin A alcohol. See vitamin A1.

  2. Retinolnoun

    (Chem.) A hydrocarbon oil C32H16, obtained by the distillation of resin, -- used as a solvent, as an antiseptic, and in printer's ink.


  1. retinolnoun

    A fat-soluble carotenoid vitamin (vitamin A), present in fish oils and green vegetables, essential to normal vision and to bone development.


  1. Retinol

    Retinol, also called vitamin A1, is a fat-soluble vitamin in the vitamin A family found in food and used as a dietary supplement. As a supplement it is used to treat and prevent vitamin A deficiency, especially that which results in xerophthalmia. In regions where deficiency is common, a single large dose is recommended to those at high risk twice a year. It is also used to reduce the risk of complications in measles patients. It is taken by mouth or by injection into a muscle.Retinol at normal doses is well tolerated. High doses may cause enlargement of the liver, dry skin, and hypervitaminosis A. High doses during pregnancy may harm the fetus. The body converts retinol to retinal and retinoic acid, through which it acts. Dietary sources include fish, dairy products, and meat.Retinol was discovered in 1909, isolated in 1931, and first made in 1947. It is on the World Health Organization's List of Essential Medicines. Retinol is available as a generic medication and over the counter.

Webster Dictionary

  1. Retinolnoun

    a hydrocarbon oil obtained by the distillation of resin, -- used in printer's ink

  2. Etymology: [Gr. resin + L. oleum oil.]


  1. Retinol

    Retinol is one of the animal forms of vitamin A. It is a diterpenoid and an alcohol. It is convertible to other forms of vitamin A, and the retinyl ester derivative of the alcohol serves as the storage form of the vitamin in animals. When converted to the retinal form, vitamin A is essential for vision, and when converted to retinoic acid, is essential for skin health, teeth remineralization and bone growth. These chemical compounds are collectively known as retinoids, and possess the structural motif of all-trans retinol as a common feature in their structure. Structurally, all retinoids also possess a β-ionone ring and a polyunsaturated side chain, with either an alcohol, aldehyde, a carboxylic acid group or an ester group. The side chain is composed of four isoprenoid units, with a series of conjugated double bonds which may exist in trans- or cis-configuration. Retinol is produced in the body from the hydrolysis of retinyl esters, and from the reduction of retinal. Retinol in turn is ingested in a precursor form; animal sources contain retinyl esters, whereas plants contain pro-vitamin A carotenoids. Hydrolysis of retinyl esters results in retinol, while pro-vitamin A carotenoids can be cleaved to produce retinal by carotene dioxygenase in the intestinal mucosa. Retinal, also known as retinaldehyde, can be reversibly reduced to produce retinol or it can be irreversibly oxidized to produce retinoic acid, which then cannot function as the vitamin in the eye.

Chambers 20th Century Dictionary

  1. Retinol

    ret′i-nol, n. a hydro-carbon oil used in printers' ink.

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  1. Chaldean Numerology

    The numerical value of retinol in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of retinol in Pythagorean Numerology is: 3

Examples of retinol in a Sentence

  1. Anne Chapas:

    You want to look at a night cream that has moisturizing ingredients such as high hyaluronic acid and dimethicone, plus look for one that has an antioxidant to repair the damage that happened throughout the day and even one with a light retinol to start repairing those fine lines.

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"retinol." Definitions.net. STANDS4 LLC, 2023. Web. 2 Jun 2023. <https://www.definitions.net/definition/retinol>.

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    base and cowardly
    • A. jejune
    • B. tenebrous
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