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antagonist

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English

Etymology

From [[w:Template:lang:la language|Template:lang:la]][[Category:Template:lang:la derivations]] antagonista, from Ancient Greek ἀνταγωνιστής (opponent), from ἀνταγωνίζεσθαι (antagonize).

Pronunciation

Noun

Singular
antagonist

Plural
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antagonist ({{{1}}})
  1. An opponent or enemy.
  2. One who antagonizes or stirs.
  3. (biochemistry) A chemical that binds to a receptor but does not produce a physiological response, blocking the action of agonist chemicals.
    • 2001: The calcium antagonists represent one of the top ten classes of prescription drugs in terms of commercial value, with worldwide sales of nearly $10 billion in 1999. — Leslie Iversen, Drugs: A Very Short Introduction (Oxford 2001, p. 41)

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