antagonists

/AE0 N T AE1 G AH0 N AH0 S T S/

noun

1
An opponent or enemy.
2
One who antagonizes or stirs.
3
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)”
4
(authorship) The main character or force opposing the protagonist in a literary work or drama.
5
A muscle that acts in opposition to another.
“A flexor, which bends a part, is the antagonist of an extensor, which extends it.”

Antonyms

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