We found 5 dictionaries that define the word electron beams:

General (4 matching dictionaries)

1. electron beams: Collins English Dictionary
2. electron beams: Vocabulary.com
3. Electron beams: Wikipedia, the Free Encyclopedia
4. electron beams: TheFreeDictionary.com

Computing (1 matching dictionary)

5. electron beams: Encyclopedia

(Note: See electron_beam as well.)

Definitions from Wiktionary (electron beam) ▸ noun:  Synonym of cathode ray ▸ Also see electron_beam ▸ Words similar to electron beams ▸ Usage examples for electron beams ▸ Idioms related to electron beams ▸ Wikipedia articles (New!) ▸ Words that often appear near electron beams ▸ Rhymes of electron beams ▸ Invented words related to electron beams