1. beams of light or energy that travel in straight lines from a source
2. large flat fish with wing-like fins and long thin tails

Examples

• The sun’s rays filtered through the clouds.
• X-rays help doctors see inside the body.
• Rays of sunlight streamed through the window.
• The stingray glided gracefully along the ocean floor.
• Gamma rays are a form of electromagnetic radiation.
• We saw several rays swimming near the coral reef.
• The laser emitted focused rays of light.