We found 20 dictionaries that define the word arc lamp:

General (16 matching dictionaries)

1. arc lamp: Merriam-Webster
2. arc lamp: Oxford Learner's Dictionaries
3. arc lamp: American Heritage Dictionary of the English Language
4. arc lamp: Collins English Dictionary
5. arc lamp: Vocabulary.com
6. arc lamp: Cambridge Advanced Learner's Dictionary
7. arc lamp: Wiktionary
8. arc lamp: The Wordsmyth English Dictionary-Thesaurus
9. arc lamp: Dictionary.com
10. Arc lamp: Wikipedia, the Free Encyclopedia
11. arc lamp: Rhymezone
12. arc lamp: FreeDictionary.org
13. arc lamp: Mnemonic Dictionary
14. arc lamp: TheFreeDictionary.com
15. arc-lamp, arc lamp: Wordnik
16. arc lamp: Merriam-Webster

Art (1 matching dictionary)

17. English-Chinese Dictionary of Graphic Communications (Big 5) (No longer online)

Computing (1 matching dictionary)

18. arc lamp: Encyclopedia

Tech (2 matching dictionaries)

19. AUTOMOTIVE TERMS (No longer online)
20. PhotoNotes Dictionary of Film and Digital Photography (No longer online)

(Note: See arc_lamps as well.)

Definitions from Wiktionary (arc lamp) ▸ noun:  An electric arc arranged so as to produce useful light. Similar: arc light, luminaire, nightlamp, standard lamp, lamp, reading-lamp, bedlamp, streetlamp, chamber lamp, drop light, more... Opposite: incandescent lamp, fluorescent lamp, LED lamp, halogen lamp Types: carbon arc lamp, mercury vapor lamp, metal halide lamp, more... Phrases: carbon arc lamp, mercury arc lamp, Xenon arc lamp, Deuterium arc lamp, more... ▸ Words similar to arc lamp ▸ Usage examples for arc lamp ▸ Idioms related to arc lamp ▸ Wikipedia articles (New!) ▸ Words that often appear near arc lamp ▸ Rhymes of arc lamp ▸ Invented words related to arc lamp