fluorescein

Glowing diagnostic compound

Fluorescein is a synthetic dye that glows bright yellowish-green under ultraviolet light.

It's widely used in medical diagnostics—ophthalmologists apply it to detect corneal abrasions and retinal problems, and it traces fluid flow in angiography.

Search-and-rescue teams use it to mark water for aerial spotting.

The fluorescein dye revealed a scratch on her cornea.

safety

leak

Escape through a breach

groundwater · tracing · dye · test · water · flow · pollution · environmental · sewer · inspection

fluorescent

glow

Steady, soft light

emission · bright · yellow-green · visible · excitation · spectrum · intensity · phosphorescence · radiant · illumination

ophthalmic

angiography

Imaging of blood vessels

  • cornealOf the eye's outer layer
  • retinaLight-sensing tissue layer
  • eyeOrgan of sight

exam · staining · ulcer · conjunctiva · tear · film · breakup · time · leakage · vessel

chemical

sodium

Eleventh element, highly reactive

synthesis · solution · concentration · molecular · spectroscopy · absorption · emission · wavelength · quantum · yield

tracer

labeling

Assigning identifying markers

  • detectionAct of finding something
  • imagingProducing visual representations
  • probeThorough examination or tool

tagging · biotechnology · histology · antibody · cellular · microscopy · quantification · marker · tracking · visualization

indicator

pH

Measure of solution acidity

acid-base · buffer · alkalinity · acidity · neutralization · solution · analyte · color · change · transition

Opposites
fluorescence/visibility

fluoresceinquencher

Something that satisfies thirst

absorber

dye function

fluoresceinmordant

Cuttingly critical in expression

India ink

Phrases
Family

fluorescent, fluorescence, fluoresce, fluoresces, fluoresced, nonfluorescent

Familiarity
Top 1,000,000
Profile
Used worldwide · Timeless · Concrete · Rated G