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单词 cholesterol
释义

cholesteroln.

Brit. /kəˈlɛst(ə)rɒl/, /kɒˈlɛst(ə)rɒl/, /kəˈlɛstr(ə)l/, /kɒˈlɛstr(ə)l/, U.S. /kəˈlɛstəˌrɔl/, /kəˈlɛstəˌrɑl/
Origin: A variant or alteration of another lexical item. Etymon: cholesterin n.
Etymology: Alteration (with suffix substitution: see -ol suffix) of cholesterin n. Compare German Cholesterol (1894; < English); the usual German name is Cholesterin cholesterin n.
1. Chemistry. A steroid alcohol that is a major constituent of the lipid bilayer of cell membranes in humans and other vertebrates, and which serves other important cellular and metabolic functions, esp. as a precursor of other steroid compounds. Also called cholesterin n.Cholesterol is also a component of fatty plaques on artery walls (atheromas) and of certain types of gallstone. A high level of cholesterol-rich (low-density) lipoprotein in the blood is associated with an increased risk of atherosclerosis. For many years cholesterol consumed in the diet was thought to be paramount in the process of atherogenesis, but its role is now considered to be much less certain.Formula: C27H45OH.bad cholesterol, good cholesterol: see the first element.
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the world > matter > chemistry > organic chemistry > alcohols > [noun] > steroid alcohols > sterols > named
cinchol1885
cholesterol1894
phytosterol1898
sitosterol1898
stigmasterol1907
lanosterol1929
suprasterol1930
lumisterol1932
tachysterol1933
the world > matter > chemistry > organic chemistry > organic compounds > [noun] > cyclic compounds > steroids > cholesterol
cholesterin1818
cholestearin1835
cholesterol1894
1894 Jrnl. Chem. Soc. 66 i. 486 A great number of analytical results obtained by the authors with cholesterol and its derivatives, seem to show that the composition of cholesterol is expressed by the formula C27H44O.
1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 88/2 In the tissues of animals, with the exception of certain invertebrates, cholesterol is present and appears to be synthesised in vivo.
1962 I. Asimov Chemicals of Life (ed. 2) viii. 103 One-tenth of the solid substance of the brain is cholesterol.
1981 R. N. Hardy Endocrine Physiol. ix. 114 All the adrenal cortical hormones are steroids derived initially from cholesterol.
2001 K. Sampson Outlaws (2002) 80 Even the lads down the gym are all clued up about CPRs and cholesterol and the balance of your diet.
2010 Guardian 6 Jan. 18/1 Vito Franco..noted a so-called xanthelasma—a subcutaneous accumulation of cholesterol—in the hollow of the Mona Lisa's left eye.
2. The level of cholesterol in the blood.
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1923 Internat. Med. Digest 4 51 Menopause is an independent cause of high cholesterol as shown by a group of..cases.
1956 Public Health Rep. (U.S. Public Health Service) 71 320/3 A relationship between high cholesterol and hypertension or cardiovascular-renal deaths could not be supported by the data.
1993 B. Moyers Healing & Mind ii. 105 The ancient yogis and swamis and priests and rabbis didn't develop yoga, meditation, and prayer just to lower cholesterol.
2010 Independent 5 Aug. 9/1 The findings could lead to new ways of treating people with naturally high cholesterol.

Compounds

C1. General attributive, etc., as cholesterol concentration, cholesterol-reducing, cholesterol screening, etc.
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1903 Jrnl. Franklin Inst. 176 407 These reactions show the presence of one ethylene bond in the cholesterol molecule.
1949 H. W. C. Vines Green's Man. Pathol. (ed. 17) xxx. 801 (caption) Cholesterol stones formed of heavy radiating cholesterol crystals.
1960 Clin. Chimica Acta 5 640 These workers..added to the amount of serum used for cholesterol estimation sufficient p-toluenesulphonic acid to bring the final volume up to that used in their cholesterol test.
1989 Psychol. Today Sept. 28/2 The AHF's 10-year-old ‘Know Your Body’ program..is one school-based effort to combine cholesterol screening with lessons on eating right, exercising and not smoking.
2011 New Yorker 30 May 37/3 Embraced as a ‘superfruit’—a potent combination of cholesterol-reducing fats and anti-aging antioxidants—açaí became one of the fastest-growing foods in history.
C2.
cholesterol-conscious adj. aware of the health risks relating to cholesterol; concerned about one's own cholesterol level; (also) characterized by such concern.
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1956 Altoona (Pa.) Mirror 25 May 88/3 James and Elsie Welton have a new book titled ‘Gourmet Cookery for a Low Fat Diet’, which in these cholesterol conscious days should be a hit.
1981 K. Thear in K. Thear & A. Fraser Compl. Bk. Raising Livestock & Poultry i. 24/2 Most people keep chickens for eggs,..despite what cholesterol-conscious authorities may say.
2002 ‘C. Dragonwagon’ Passionate Vegetarian xiii. 882/3 Many cholesterol-conscious eaters enjoy the whites and throw away the yolks.
cholesterol count n. = cholesterol level n.
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1917 Trans. Coll. Physicians Philadelphia 39 263 The cholesterol count in this case was 147 which is low.
1961 Time 13 Jan. 50/2 They get 45% of their calories from fatty foods, and their average cholesterol count is 213.
2003 N.Y. Times Mag. 4 May 76/1 If you turn out to be among the population whose cholesterol count doesn't react much to diet, you'll be able to go ahead and eat those bacon sandwiches.
cholesterol-free adj. (of food) containing no (or very little) cholesterol.
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1909 Proc. Royal Soc. B. 81 111 In experiments in which cholesterol free food was given no cholesterol was found.
1976 Woman's Day (N.Y.) Nov. 158/2 Whole-grain bread should be served generously to assure that your family fills up on fat- and cholesterol-free foods.
2004 Herald Sun (Melbourne) (Nexis) 31 May 93 The fat in high-quality, plain chocolate is cholesterol-free.
cholesterol-laden adj. containing a high concentration or large amount of cholesterol.
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1925 Postgraduate Med. Jrnl. 1 5/2 Detached cholesterol-laden villi of the gall-bladder mucosa.
1954 Sci. Digest Sept. 51/2 A diet study shows the Navajos eat the same amount of cholesterol-laden fatty foods as other persons.
2004 Sunday Times Trav. Feb. 164/4 For a million-calorie, cholesterol-laden indulgence head..for a hot chocolate and an ensaïmada.
cholesterol level n. the concentration or amount of cholesterol in the blood; a measurement of this.
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1918 Amer. Jrnl. Med. Sci. 156 27 By feeding rabbits pure cholesterol, Anitschow and Chalatow rapidly raised the cholesterol level of their bloods.
1975 Chem. Week 29 Jan. 36 Drugs that lower cholesterol level don't prolong life of patients.
2007 Independent 22 Jan. 15/2 Dog owners tend to have lower blood pressure and cholesterol levels, possibly thanks to regular walks with their four-legged friends.
cholesterol-lowering adj. (esp. of a drug or food) capable of reducing the cholesterol level of the blood.
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1945 Arch. Pathol. 39 215/1 Administering blood cholesterol-lowering agents, such as..thyroid preparations.]
1956 Lancet 23 June 1018/1 The common denominator of cholesterol-lowering oils in man may actually be linolenate, or a fatty acid of a higher degree of unsaturation, plus linolenate.
1975 A. Ancowitz Strokes & their Prevention iii. 59 Atherosclerosis can be reversed through dietary modification, use of hormones, and cholesterol-lowering drugs.
2001 E. B. Feldman in C. D. Berdanier Handbk. Nutrition & Food li.1051 Plant proteins are cholesterol-lowering.
This entry has been updated (OED Third Edition, June 2014; most recently modified version published online March 2022).
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