carotene

[ kar-uh-teen ]

/ ˈkær əˌtin /

noun

any of three yellow or orange fat-soluble pigments having the formula C40H56, found in many plants, especially carrots, and transformed to vitamin A in the liver; provitamin A.

Also carotin.

Origin of carotene

1860–65; <Late Latin carōt(a) carrot + -ene

Words nearby carotene

carom, carom ball, Caroní, Caro's acid, carotenase, carotene, carotenemia, carotenoid, carotenosis cutis, Carothers, caroticotympanic

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for carotene

carotene

carotin (ˈkærətɪn)

/ (ˈkærəˌtiːn) /

noun

any of four orange-red isomers of an unsaturated hydrocarbon present in many plants (β-carotene is the orange pigment of carrots) and converted to vitamin A in the liver. Formula: C 40 H 56

Word Origin for carotene

C19 carotin, from Latin carōta carrot; see -ene

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for carotene

carotene

[ kăr′ə-tēn′ ]

n.

An orange-yellow to red crystalline pigment that exists in three isomeric forms designated alpha, beta, and gamma; it is converted to vitamin A in the liver and is found in animal tissue and certain plants, such as carrots and squash.

Scientific definitions for carotene

carotene

[ kăr′ə-tēn′ ]

Any of various organic compounds that occur as orange-yellow to red pigments in many plants and in animal tissue. In plant leaves, carotenes aid in the absorption of light energy by transferring the energy to chlorophyll and act as antioxidants protecting chlorophyll from damage by oxidation. In animals, carotenes are converted to vitamin A primarily in the liver. They are members of the carotenoid family of compounds and give plants such as carrots, pumpkins, and dandelions their characteristic color. Chemical formula: C40H56. See also xanthophyll.

单词	carotene
释义	carotene [ kar-uh-teen ] / ˈkær əˌtin / noun any of three yellow or orange fat-soluble pigments having the formula C40H56, found in many plants, especially carrots, and transformed to vitamin A in the liver; provitamin A. Also carotin. Origin of carotene 1860–65; <Late Latin carōt(a) carrot + -ene Words nearby carotene carom, carom ball, Caroní, Caro's acid, carotenase, carotene, carotenemia, carotenoid, carotenosis cutis, Carothers, caroticotympanic Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for carotene carotene carotin (ˈkærətɪn) / (ˈkærəˌtiːn) / noun any of four orange-red isomers of an unsaturated hydrocarbon present in many plants (β-carotene is the orange pigment of carrots) and converted to vitamin A in the liver. Formula: C 40 H 56 Word Origin for carotene C19 carotin, from Latin carōta carrot; see -ene Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for carotene carotene [ kăr′ə-tēn′ ] n. An orange-yellow to red crystalline pigment that exists in three isomeric forms designated alpha, beta, and gamma; it is converted to vitamin A in the liver and is found in animal tissue and certain plants, such as carrots and squash. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for carotene carotene [ kăr′ə-tēn′ ] Any of various organic compounds that occur as orange-yellow to red pigments in many plants and in animal tissue. In plant leaves, carotenes aid in the absorption of light energy by transferring the energy to chlorophyll and act as antioxidants protecting chlorophyll from damage by oxidation. In animals, carotenes are converted to vitamin A primarily in the liver. They are members of the carotenoid family of compounds and give plants such as carrots, pumpkins, and dandelions their characteristic color. Chemical formula: C40H56. See also xanthophyll. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	blue succory blue swimmer bluet canterbury tales, the can't fight city hall cant frame cantharid cantharides cantharus canthectomy can't help canthitis can't hit the broad side of a barn can-tho can't hold a candle to cantholysis canthomeatal plane cant hook canthoplasty canthorrhaphy canthotomy canthus canticle canticle of canticles canticum