| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024cho•les•ter•ol /kəˈlɛstəˌroʊl, -ˌrɔl/USA pronunciation n. [uncountable]- Biochemistrya substance found in animal fats:high levels of cholesterol in the blood.
WordReference Random House Unabridged Dictionary of American English © 2024cho•les•ter•ol (kə les′tə rōl′, -rôl′),USA pronunciation n. [Biochem.]- Biochemistrya sterol, C27H46O, that occurs in all animal tissues, esp. in the brain, spinal cord, and adipose tissue, functioning chiefly as a protective agent in the skin and myelin sheaths of nerve cells, a detoxifier in the bloodstream, and as a precursor of many steroids: deposits of cholesterol form in certain pathological conditions, as gallstones and atherosclerotic plaques.
- Biochemistrythe commercial form of this compound, obtained from the spinal cord of cattle, used chiefly as an emulsifying agent in cosmetics and pharmaceuticals, and in the synthesis of vitamin D.
Also, cho•les•ter•in (kə les′tər in).USA pronunciation - chole- + Greek ster(eós) solid + -ol1 1890–95
Collins Concise English Dictionary © HarperCollins Publishers:: cholesterol /kəˈlɛstəˌrɒl/ n - a sterol found in all animal tissues, blood, bile, and animal fats: a precursor of other body steroids. A high level of cholesterol in the blood is implicated in some cases of atherosclerosis, leading to heart disease. Formula: C27H45OH
Former name: cholesterin /kəˈlɛstərɪn/
Etymology: 19th Century: from chole- + Greek stereos hard, solid, so called because first observed in gallstones |