fluorescent
英 [fl??'res(?)nt; fl??-]
美[,fl?'r?snt]
- adj. 熒光的；螢光的；發(fā)亮的
- n. 熒光；日光燈
CET6+TEM4IELTSGRETOEFL低頻詞暢通詞匯
詞態(tài)變化
名詞:?fluorescence;
助記提示
1. flu- + -or => fluor (originally meaning "a flowing, flow").
2. => fluor: an old chemistry term for "minerals which were readily fusible and useful as fluxes in smelting". => fluorite / fluorspar.
3. fluorspar ("calcium fluoride," modern fluorite), name of the mineral where it was first found.
4. fluor + -ine (chemical suffix). So named because it is isolated from fluor / fluorite.
5. fluor + -escence (-esce + -ence). Because in fluorspar (fluorite) he first noticed the phenomenon, on analogy of phosphorescence. => "glowing in ultraviolet light".
6. fluorescence => fluorescent.
2. => fluor: an old chemistry term for "minerals which were readily fusible and useful as fluxes in smelting". => fluorite / fluorspar.
3. fluorspar ("calcium fluoride," modern fluorite), name of the mineral where it was first found.
4. fluor + -ine (chemical suffix). So named because it is isolated from fluor / fluorite.
5. fluor + -escence (-esce + -ence). Because in fluorspar (fluorite) he first noticed the phenomenon, on analogy of phosphorescence. => "glowing in ultraviolet light".
6. fluorescence => fluorescent.
中文詞源
fluorescent 發(fā)熒光的
來(lái)自19世紀(jì)英國(guó)物理學(xué)家George Stokes, 因?yàn)樗紫仍诜邪l(fā)現(xiàn)這種發(fā)光現(xiàn)象而命名，而并非熒光一定來(lái)自于氟。-escence, 開始的，詞源同adolescent.
英文詞源
- fluorescent (adj.)
- 1853 (Stokes), from fluor- (see fluoro-) + -escent (see fluorescence). The electric fluorescent lamp was invented by Edison in 1896, but such lights were rare in homes before improved bulbs became available in the mid-1930s.
雙語(yǔ)例句
- 1. Fluorescent lights flickered, and then the room was brilliantly, blindingly bright.
- 熒光燈閃了幾下，接著屋子里豁然大亮，刺得人睜不開眼。
來(lái)自柯林斯例句
- 2. It was lit by hooded fluorescent lamps.
- 照明用的是帶燈罩的日光燈。
來(lái)自柯林斯例句
- 3. This shop sells fluorescent paint.
- 這家商店出售熒光漆.
來(lái)自《簡(jiǎn)明英漢詞典》
- 4. With an 18-watt fluorescent bulb you get as much light but use 75% less electricity.
- 用18瓦的熒光燈燈泡有同樣的亮度，而用電量卻減少75％。
來(lái)自柯林斯例句
- 5. A typical fluorescent lamp is a tube with metal electrodes at each end.
- 日光燈通常是一根兩端裝有金屬電極的管子。
來(lái)自柯林斯例句