英 [flʊə'res(ə)nt; flɔː-]
- adj. 荧光的；萤光的；发亮的
- n. 荧光；日光灯
CET6+ TEM4 IELTS GRE TOEFL
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.
来自19世纪英国物理学家George Stokes, 因为他首先在氟中发现这种发光现象而命名，而并非荧光一定来自于氟。-escence, 开始的，词源同adolescent.
- 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.
- 1. Fluorescent lights flickered, and then the room was brilliantly, blindingly bright.
- 2. It was lit by hooded fluorescent lamps.
- 3. This shop sells fluorescent paint.
- 4. With an 18-watt fluorescent bulb you get as much light but use 75% less electricity.
- 5. A typical fluorescent lamp is a tube with metal electrodes at each end.
[ fluorescent 造句 ]