A process or action of agonizing.

plural of agonization

Competitive struggle (especially political). / (biochemistry) The relationship between an agonist and a receptor.

plural of agonic.

plural of agonism

(rare) Possessing or filled with agony.

(archaic or dialectal, Northern England) Alternative form of ago

(intransitive) To writhe with agony; to suffer violent anguish. / (intransitive) To struggle; to wrestle; to strive desperately, whether mentally or physically.

Causing physical or mental agony.

present participle of agonize