Electrode

The musician used an electrode to create electronic sounds in their performance.

The doctor inserted the electrode into the patient's brain to measure the activity.

The dentist used an electrode to remove the decayed part of the tooth.

The chemist used an electrode to analyze the properties of the substance in the solution.

The battery has a positive and a negative electrode.

The neurologist placed an electrode on the patient's scalp to monitor brain activity.

The scientist inserted an electrode into the soil to measure the electrical conductivity.