An “AC power cord” or “AC Cord” is the electrical cable that connects an instrument, an appliance or anything that need electricity to work.
The so called cord is fitted at one end with a plug that matches the receptacle in which it is connected to.
Depending if the equipment uses 120V or 220 (or 240V depending on the country where you are), current will flow once the power ON/OFF switch is turned on.
Inside the instrument, depending on the type, a connector called an IEC connector (like the one at the back of desktop computers for example) will terminate the power cord.
Inside the AC Cord, a suitable power supply will then provide the necessary voltages to said equipment like +5V, +/12V, etc.
In the case of an appliance, the power cord is usually tied inside the casing so that the electrical current is distributed as necessary to the rest of the appliance to produce work.
In the case of an electric stove (or range), power goes to the control panel.
The control panel distributes power to the cooking elements, to the oven, lights, clock and sometimes to various electrical outlets outside the stove.
An AC cord consists of a mains plug connected to a flexible cord which is rated for use with AC current up to a certain voltage and current, but not with DC current.
The other end of the AC Cord may be permanently wired to an appliance, or it may terminate in an appliance connector.
The photograph below shows a typical US mains plug at one end of a AC Cord, with an appliance connector at the other. Both are clearly marked with the AC Cord symbol: ~.