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.

fluorescent 发荧光的

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.

1. Fluorescent lights flickered, and then the room was brilliantly, blindingly bright.

荧光灯闪了几下，接着屋子里豁然大亮，刺得人睁不开眼。

2. It was lit by hooded fluorescent lamps.

照明用的是带灯罩的日光灯。

3. This shop sells fluorescent paint.

这家商店出售荧光漆.

4. With an 18-watt fluorescent bulb you get as much light but use 75% less electricity.

用18瓦的荧光灯灯泡有同样的亮度，而用电量却减少75％。

5. A typical fluorescent lamp is a tube with metal electrodes at each end.

日光灯通常是一根两端装有金属电极的管子。