an·tag·o·nist /-nəst/ 名詞
1. One who contends with another, especially in combat; an adversary; an opponent.
Antagonist of Heaven's Almighty 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 substance which opposes the actions of another substance in the body, especially a drgu that counteracts the effects of another drug.
Syn: -- Adversary; enemy; opponent; foe; competitor. See Adversary.
An·tag·o·nist, a. Antagonistic; opposing; counteracting; as, antagonist schools of philosophy.
n 1: someone who offers opposition [syn: adversary, opponent,
opposer, resister] [ant: agonist]
2: a muscle that relaxes while another contracts; "when bending
the elbow the triceps are the antagonist"
3: a drug that neutralizes or counteracts the effects of
another drug [ant: synergist]