English Explanatory Dictionary

lactose

English dictionary entry

Meanings

noun
  1. The disaccharide sugar of milk and dairy products, C₁₂H₂₂O₁₁, a product of glucose and galactose used as a food and in medicinal compounds.

Pronunciation

/ˈlæk.təʊs/ /ˈlæk.təʊz/ LL-Q1860 (eng)-Vealhurl-lactose.wav LL-Q1860 (eng)-Vealhurl-lactose2.wav /ˈlæk.toʊs/

Word forms

lactose lactoses

Etymology

Borrowed from French lactose, from Latin lac (“milk”) + -ose (derivation of glucose). Coined by French chemist Marcelin Berthelot.

Synonyms

lactobiose milk sugar

Related words

lactase lactulose

Derived words

allolactose lactard lactosamine lactoseamine lactose-free lactose intolerance lactose intolerant lactose-negative lactose-positive lactoside lactosuria
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