fluorescent
/fluorescent/
Học thuậtThân thiện
Definition
Adjective:
- Emitting visible light as a result of absorbing radiation from an external source: Describes a substance or object that glows brightly when exposed to ultraviolet light or other forms of electromagnetic radiation.
- Brilliantly colored and appearing to give off light: Describes very bright, vivid colors that seem to glow, even in normal light.
Noun:
- A lighting fixture that uses a fluorescent lamp: A complete unit, such as an overhead light, that contains a fluorescent tube for illumination.
Usage Examples
- Adjective:
- The scientist used a fluorescent dye to track the cell's movement under a special microscope.
- She wore a fluorescent pink jacket so she would be visible to cyclists at night.
- Noun:
- The office was lit by long, humming fluorescents. (Here, "fluorescents" is a common informal shortening for "fluorescent lights" or "fluorescent fixtures".)
Advanced Usage
- Fluorescent marker/pen: A pen with ink that is very bright and visible, often used for highlighting text.
- She underlined the key points with a fluorescent yellow marker.
- Fluorescent in situ hybridization (FISH): A laboratory technique used in genetics and medical diagnostics.
- FISH is a fluorescent technique that allows researchers to visualize specific DNA sequences on chromosomes.
Variants and Related Words
- Fluorescence (n): The property or process of emitting light upon exposure to radiation.
- The mineral's fluorescence under UV light was stunning.
- Fluoresce (v): To exhibit fluorescence; to emit light.
- Certain proteins will fluoresce when tagged with the correct chemical.
Synonyms
- Adjective (for color): Neon, Day-Glo, luminous, vivid.
- Adjective (for light emission): Luminescent, glowing, phosphorescent (note: phosphorescent implies light emission that continues after the radiation source is removed).
Related Phrases
- Fluorescent lamp/tube/light bulb: The specific glass tube within a fixture that produces light via fluorescence.
- We replaced the old incandescent bulbs with energy-efficient fluorescent tubes.
- Fluorescent light: The illumination produced by a fluorescent lamp.
- The harsh fluorescent light in the supermarket gave her a headache.
Adjective
- brilliantly colored and apparently giving off light
- fluorescent colors
- emitting light during exposure to radiation from an external source
Noun
- a lighting fixture that uses a fluorescent lamp