English Collins Dictionary - English synonyms & Thesaurus. ( rejigs 3rd person present) ( rejigging present participle) ( rejigged past tense & past participle ) If someone rejigs an organization or a piece of work, they arrange or organize it in a different way, in order to improve it. (BRIT) verb. ...adjustments needed to rejig the industry.
Agonist: A substance that acts like another substance and therefore stimulates an action. Agonist is the opposite of antagonist. Antagonists and agonists are key players in the chemistry of the human body and in pharmacology. Last Editorial Review: 5/13/2016.
antagonist. n. 1. an opponent or adversary, as in a contest, drama, sporting event, etc. 2. (Physiology) any muscle that opposes the action of another. Compare agonist 1. 3. (Pharmacology) a drug that counteracts the effects of another drug. Compare synergist 1.strogen antagonist, tamoxifen-an antagonist for estrogen that is used in the treatment of breast cancer. narcotic antagonist-an antagonist used to counteract the effects of narcotics (especially to counteract the depression of respiration).