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The definition of beam

18 Definitions of: beam

1. noun, a long thick straight-sided piece of wood, metal, concrete, etc, esp one used as a horizontal structural member
2. noun, any rigid member or structure that is loaded transversely
3. noun, the breadth of a ship or boat taken at its widest part, usually amidships
4. noun, a ray or column of light, as from a beacon
5. noun, a broad smile
6. noun, one of the two cylindrical rollers on a loom, one of which holds the warp threads before weaving, the other the finished work
7. noun, the main stem of a deer's antler from which the smaller branches grow
8. noun, the central shaft of a plough to which all the main parts are attached
9. noun, a narrow unidirectional flow of electromagnetic radiation or particles
10. noun, the horizontal centrally pivoted bar in a balance
11. noun, the width of the hips (esp in the phrase broad in the beam)
12. noun, a beam in one's eye a fault or grave error greater in oneself than in another person
13. noun, off (the) beam a) not following a radio beam to maintain a course b) wrong, mistaken, or irrelevant
14. noun, on the beam a) following a radio beam to maintain a course b) nautical opposite the beam of a vessel; abeam c) correct, relevant, or appropriate
15. verb, to send out or radiate (rays of light)
16. verb, to divert or aim (a radio signal or broadcast, light, etc) in a certain direction
17. verb, to pass (data, esp business card details, etc) from one hand-held computer to another by means of infrared beams
18. verb, to smile broadly with pleasure or satisfaction
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Synonyms:	happy, shine, glint, broadcast, smile, air, ray, bar, flash, stream	And more...

From Collins