English edit

Etymology edit

maté +‎ -ine

Noun edit

mateine (uncountable)

  1. (organic chemistry) Caffeine extracted from maté plant.
    Coordinate terms: caffeine, guaranine, theine
    • 2014, Nicolae Sfetcu, Health & Drugs: Disease, Prescription & Medication:
      Caffeine is a xanthine alkaloid compound that acts as a stimulant in humans. Caffeine is sometimes called guaranine when found in guarana, mateine when found in mate, and theine when found in tea.
  2. (organic chemistry) A hypothetical xanthine alkaloid said to be found in maté, supposed to resemble caffeine.
    • 2015, Thom Hartmann, ADHD and the Edison Gene:
      Unlike tea and coffee, however, it does not contain caffeine. Instead, its main active ingredient is a xanthine alkaloid known as mateine.

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