carotenecarotinn.

/ˈkarətiːn/

/ˈkarətɪn/

Etymology: < German carotin (H. W. F. Wackenroder 1831, in Mag. Pharmacie XXXIII. 148), < Latin carota carrot + -ene comb. form, -in suffix¹.

An orange or red hydrocarbon, C₄₀H₅₆, synthesized in several isomeric forms by carrots and many other plants, and an important source of vitamin A. Also attributive.

ΘΚΠ

the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > cyclic hydrocarbons > others

heveëne1838

menthene1838

carotene1861

stilbene1868

mesityl1879

naphthene1884

tetramethylene1885

hexamethylene1887

pentamethylene1887

irene1894

pregnane1932

adamantane1933

aldrin1949

sterane1951

norbornane1952

1861 I. M. Beeton Bk. Househ. Managem. xxv. 563 A peculiar crystallizable ruby-red neuter principle, without odour or taste, called carotin.

1895 Naturalist 24 [Berries of mountain ash.] Their colouring matter is due to carotin.

1897 Jrnl. Chem. Soc. 72 ii. 225 The author does not attempt to decide whether the crystals formed in this reaction are all xanthophyll or all carotin crystals, or whether these are identical or whether they consist in part of colouring matters nearly related to carotene.

1898 M. I. Newbigin Colour in Nature 39 In plants the best known lipochrome is carotin.

1951 Sci. News 22 75 Vitamin A..is one half of a carotene molecule and is formed from carotene in the intestinal wall of animals.

1960 H. M. Fox & H. G. Vevers Nature of Animal Colours v. 76 Other vitamin A precursors are α-carotene, cryptoxanthin (3-oxy-β-carotene), found in many plants as well as in egg-yolk, and echinenone.

Derivatives

ˌcaroteˈnaemia n. (ˌcarotiˈnæmia, U.S.ˌcaroteˈnemia) the presence of carotene in the circulating blood.

ΘΚΠ

the world > health and disease > ill health > a disease > disorders of internal organs > disorders of blood > [noun] > presence of abnormalities

piarhaemia1848

uraemia1853

melanaemia1859

urinaemia1860

lithaemia1874

lipaemia1881

blood urea1883

haemoglobinaemia1885

bacteraemia1890

oxalaemia1892

uric-acidaemia1893

sulphaemoglobinaemia1910

carotenaemia1919

parasitaemia1944

viraemia1947

paraproteinaemia1956

1919 A. F. Hess & V. C. Myers in Jrnl. Amer. Med. Assoc. LXXIII. 1745/1 In cases of carotinemia the urine was colored yellow as well as the serum.

1959 Listener 11 June 1017/1 Occasional cases of a condition known as carotinaemia were encountered... It arose from an over-indulgence in carrots.

This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2018).

单词	carotene
释义	carotenecarotinn. /ˈkarətiːn//ˈkarətɪn/ Etymology: < German carotin (H. W. F. Wackenroder 1831, in Mag. Pharmacie XXXIII. 148), < Latin carota carrot + -ene comb. form, -in suffix¹. An orange or red hydrocarbon, C₄₀H₅₆, synthesized in several isomeric forms by carrots and many other plants, and an important source of vitamin A. Also attributive. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > cyclic hydrocarbons > others heveëne1838 menthene1838 carotene1861 stilbene1868 mesityl1879 naphthene1884 tetramethylene1885 hexamethylene1887 pentamethylene1887 irene1894 pregnane1932 adamantane1933 aldrin1949 sterane1951 norbornane1952 1861 I. M. Beeton Bk. Househ. Managem. xxv. 563 A peculiar crystallizable ruby-red neuter principle, without odour or taste, called carotin. 1895 Naturalist 24 [Berries of mountain ash.] Their colouring matter is due to carotin. 1897 Jrnl. Chem. Soc. 72 ii. 225 The author does not attempt to decide whether the crystals formed in this reaction are all xanthophyll or all carotin crystals, or whether these are identical or whether they consist in part of colouring matters nearly related to carotene. 1898 M. I. Newbigin Colour in Nature 39 In plants the best known lipochrome is carotin. 1951 Sci. News 22 75 Vitamin A..is one half of a carotene molecule and is formed from carotene in the intestinal wall of animals. 1960 H. M. Fox & H. G. Vevers Nature of Animal Colours v. 76 Other vitamin A precursors are α-carotene, cryptoxanthin (3-oxy-β-carotene), found in many plants as well as in egg-yolk, and echinenone. Derivatives ˌcaroteˈnaemia n. (ˌcarotiˈnæmia, U.S.ˌcaroteˈnemia) the presence of carotene in the circulating blood. ΘΚΠ the world > health and disease > ill health > a disease > disorders of internal organs > disorders of blood > [noun] > presence of abnormalities piarhaemia1848 uraemia1853 melanaemia1859 urinaemia1860 lithaemia1874 lipaemia1881 blood urea1883 haemoglobinaemia1885 bacteraemia1890 oxalaemia1892 uric-acidaemia1893 sulphaemoglobinaemia1910 carotenaemia1919 parasitaemia1944 viraemia1947 paraproteinaemia1956 1919 A. F. Hess & V. C. Myers in Jrnl. Amer. Med. Assoc. LXXIII. 1745/1 In cases of carotinemia the urine was colored yellow as well as the serum. 1959 Listener 11 June 1017/1 Occasional cases of a condition known as carotinaemia were encountered... It arose from an over-indulgence in carrots. This entry has not yet been fully updated (first published 1933; most recently modified version published online September 2018). < n.1861
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