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nounthe principal character in a work of fiction
Similar:
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nouna muscle that contracts while another relaxestype of:
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noun(biochemistry) a drug that can combine with a receptor on a cell to produce a physiological reactiontype of:
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nounsomeone involved in a contest or battle (as in an agon)Opposite:type of:
Examples of agonist
- "when bending the elbow the biceps are the agonist"