[count] the formal act or process of placing someone into a new job, position, government office, etc.

b US :the formal act of making someone a member of the military

[noncount] medical :the act of giving a pregnant woman special drugs so that she will give birth

[noncount] technical :a kind of reasoning that uses particular examples in order to reach a general conclusion about something

[noncount] technical :the process by which an electric current, an electric charge, or magnetism is produced in objects by being close to an electric or magnetic field