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单词 lactose
释义

WordReference Random House Learner's Dictionary of American English © 2024
lac•tose /ˈlæktoʊs/USA pronunciation   n. [uncountable]
  1. Biochemistrya sugar present in milk that yields glucose and galactose.
  2. a white, crystal-like, sweet commercial form of this compound.

WordReference Random House Unabridged Dictionary of American English © 2024
lac•tose  (lak′tōs),USA pronunciation n. 
  1. Biochemistrya disaccharide, C12H22O11, present in milk, that upon hydrolysis yields glucose and galactose.
  2. a white, crystalline, sweet, water-soluble commercial form of this compound, obtained from whey and used in infant feedings, in confections and other foods, in bacteriological media, and in pharmacology as a diluent and excipient. Also called milk sugar, sugar of milk. 
  • lact- + -ose2 1855–60

Collins Concise English Dictionary © HarperCollins Publishers::
lactose /ˈlæktəʊs -təʊz/ n
  1. a white crystalline disaccharide occurring in milk and used in the manufacture of pharmaceuticals and baby foods. Formula: C12H22O11
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更新时间：2024/9/21 0:49:15