We found 7 dictionaries that define the word pencil beam:

General (5 matching dictionaries)

1. pencil beam: Merriam-Webster
2. pencil beam: Infoplease Dictionary
3. pencil beam: Dictionary.com
4. Pencil beam: Wikipedia, the Free Encyclopedia
5. pencil beam: TheFreeDictionary.com

Computing (1 matching dictionary)

6. pencil beam: Encyclopedia

Science (1 matching dictionary)

7. Pencil Beam: Extragalactic Astronomy

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