antagonist

1. n. One who contends with another, especially in combat; an adversary; an opponent. Source: opted

2. n. A muscle which acts in opposition to another; as a flexor, which bends a part, is the antagonist of an extensor, which extends it. Source: opted

3. n. A medicine which opposes the action of another medicine or of a poison when absorbed into the blood or tissues. Source: opted

4. a. Antagonistic; opposing; counteracting; as, antagonist schools of philosophy. Source: opted

5. n. someone who offers opposition Source: wordnet

6. n. a muscle that relaxes while another contracts Source: wordnet

7. n. a drug that neutralizes or counteracts the effects of another drug Source: wordnet

8. 1. One who contends with another, especially in combat; an adversary; an opponent. Antagonist of Heaven's Almigthy King. Milton. Our antagonists in these controversies. Hooker. 2. (Anat.) A muscle which acts in opposition to another; as a flexor, which bends a part, is the antagonist of an extensor, which extends it. 3. (Med.) A medicine which opposes the action of another medicine or of a poison when absorbed into the blood or tissues. Syn. -- Adversary; enemy; opponent; toe; competitor. See Adversary. Antagonistic; opposing; counteracting; as, antagonist schools of philosophy. Source: webster

9. A muscle which acts in opposition to another; as a flexor,which bends a part, is the antagonist of an extensor, which extendsit. Source: adambom

10. n:100 n. a muscle that relaxes while another contracts n. a drug that neutralizes or counteracts the effects of another drug Source: ecdict

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