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fluo·res·cent

(fl-rĕsənt, flô-, flō-)

adj.

a. Of or relating to fluorescence.

b. Exhibiting or produced by fluorescence: fluorescent corals; fluorescent light.

2. Glowing as if with fluorescence; vivid: bright fluorescent colors.

3. Of or relating to a light bulb that produces visible light by fluorescence, especially a glass tube whose inner wall is coated with a material that fluoresces when an electrical current causes a vapor within the tube to discharge photons.

1. A fluorescent light bulb.

2. A lamp that is fitted with a fluorescent light bulb.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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