Jisho

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Noun, Noun or verb acting prenominally
1. antagonist
Wikipedia definition
2. Receptor antagonistA receptor antagonist is a type of receptor ligand or drug that does not provoke a biological response itself upon binding to a receptor, but blocks or dampens agonist-mediated responses. In pharmacology, antagonists have affinity but no efficacy for their cognate receptors, and binding will disrupt the interaction and inhibit the function of an agonist or inverse agonist at receptors.
Read “Receptor antagonist” on English Wikipedia
Read “アンタゴニスト” on Japanese Wikipedia
Read “Receptor antagonist” on DBpedia

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