1. emitting light when exposed to radiation such as ultraviolet light
Usage: present participle of fluoresce; scientific/technical

Examples

• The minerals were fluorescing brightly under the black light.
• Scientists observed the coral fluorescing in different colors.
• The fluorescent dye was fluorescing when exposed to UV radiation.
• The lab technician noticed the sample fluorescing green.
• Certain proteins are fluorescing when viewed under the microscope.
• The rocks were fluorescing with an eerie blue glow.