fluorescent

fluorescent — adjective

1. describes a material that produces a bright glow after taking in energy from an

1.形容詞B2
釋義

describes a material that produces a bright glow after taking in energy from an outside source — for example, the white coating inside a desk lamp that turns electricity into a steady, cool light

例句

The fluorescent stamp on the ticket glowed blue under UV light, proving it was real.

absorbs UV light → emits visible coloured glow: the fluorescence mechanism in action

Biologist Priya used a fluorescent dye to track how the cells moved under the microscope.

fluorescent + dye: scientific collocation

同義詞
  • phosphorescent

    refers to materials that continue glowing after the light source is removed, unlike fluorescent materials which need constant excitation

  • luminous

    broader term covering any light emission; less technically precise

  • glowing

    informal, describes the visual effect rather than the physical process

反義詞

文法句型

fluorescent + noun

用法筆記

Frequently used before nouns such as 'light', 'lamp', 'tube', 'bulb', 'dye', and 'protein'. This sense describes a physical light-emitting process, not merely a bright appearance. Contrast with sense 2 (BRIGHT COLOURS), which describes colour intensity only.

常見錯誤

❌The car was painted fluorescent.' (without context)
✅The car was painted fluorescent green.
💡'fluorescent' alone is not a colour name; pair it with a colour word.
❌A fluorescent toy that glows all night.
✅A phosphorescent toy that glows all night.
💡'fluorescent' requires an external light source; toys that glow in the dark without light are phosphorescent or glow-in-the-dark.

2. describes colours that appear extremely bright and almost seem to glow, especial

2.形容詞B1
釋義

describes colours that appear extremely bright and almost seem to glow, especially under sunlight or artificial light — for example, fluorescent pink jackets or fluorescent green signs used for safety

例句

The rescue team wore fluorescent orange jackets so the helicopter could spot them easily.

fluorescent + orange / yellow / pink / green: vivid colour collocation

Leila used fluorescent highlighters in hot pink for dates and lime green for names.

同義詞
  • neon

    very similar meaning; 'neon' often implies an artificial or trendy quality while 'fluorescent' can describe functional safety gear

  • vivid

    general term for strong, rich colour; does not carry the 'glowing' connotation

  • bright

    common, less dramatic; a bright shirt can be any vivid colour while a fluorescent one has an extra glowing quality

  • luminous

    more formal; implies the colour seems to give off its own light

反義詞
  • dull

    lacking brightness or vividness

  • muted

    subdued in colour, not striking

文法句型

fluorescent + colour adjective + noun

用法筆記

Only used with visible colour terms (green, pink, yellow, orange) or items strongly associated with colour (paint, jacket, marker, sign). Unlike sense 1, the object does not actually emit light — the colour simply looks extremely vivid. Frequently seen in safety gear, sportswear, and party decorations.

常見錯誤

❌The room was fluorescent.
✅The room was painted fluorescent green.
💡'fluorescent' on its own sounds odd; always pair it with a colour or a noun.
❌She wore a fluorescent dress that glowed all night.
✅She wore a fluorescent dress that looked very bright under the club lights.
💡unless the dress contains a true fluorescent pigment and an external UV source, it just looks vivid, not self-lit.