a medicine used to prevent a poison or disease from having an effect

counteracting agent

a substance able to reduce the effects of poison

agent for negating the effect of an infection or poison

a person who makes a bid

person with whom one competes

an action intended to reduce, remove, be a punishment for, another

cure, solution

an instance of being made healthy again

solution to problem, often health

a person engaged in a lawsuit

person with whom one competes

(any kind of) medicine or ointment

cure

a person against whom one fights, struggles, plays games, contests an election or argues

person with whom one competes

the scientific study of matter and energy (heat, light, force etc)

cure

a cure (for a disease etc); method used for putting something right

cure, solution