1. a small flashlight shaped like a pen

Examples

• The doctor used a penlight to examine the patient’s throat.
• She kept a penlight in her purse for emergencies.
• The mechanic shined his penlight under the hood to see the engine.
• A penlight is useful for reading in dark places without disturbing others.
• The nurse checked the patient’s pupils with a small penlight.
• He clipped the penlight to his shirt pocket for easy access.