1. emitting light without heat through chemical or physical processes
Usage: present participle of luminesce

Examples

• The jellyfish was luminescing in the dark water.
• Scientists observed the bacteria luminescing under the microscope.
• The phosphorescent paint began luminescing when the lights went out.
• Deep-sea creatures were luminescing to attract prey.
• The mineral sample started luminescing under ultraviolet light.
• Fireflies were luminescing in the evening garden.