beam
- noun
- /biːm/
- Specialized
- Every twenty seconds or so, the beam from the lighthouse swept past.
Examples
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They won't touch you with a radar beam.
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In aviation, radar antennas launch pulses of radio or microwaves at planes to learn their locations by timing how long the beams take to bounce back.
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I will establish a beam for you to follow.
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No, that beam is just pointing us in the right direction.
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Guiding in on beam four.
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Morgan, scan for the beam.
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We've got you locked on beam.
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I'll send you a homing beam.
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Sir, Earth radar beams are bouncing off our ship.
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The pilot carefully aligned his plane to follow the beam guiding him to the runway.
Synonyms
A narrow radio signal that helps pilots find the runway in poor visibility
Idioms
Wide from side to side, like a boat that is very stable or a person with wide hips
Compounds
- Specialized
A very narrow, bright light in one color that can cut or point at things
- Specialized
A narrow, focused stream of tiny particles like electrons used in science and medicine
- Specialized
A long metal piece shaped like the letter I that supports buildings and bridges
- Specialized
A focused stream of tiny charged particles used to make images in special microscopes
- Specialized
A balance with a long bar that turns and uses a sliding weight to measure how heavy something is
- Specialized
A strong piece of wood or metal that holds the weight of parts of a building
- Archaic
Ends of the support pieces that run across a ship's deck when it leans nearly vertical
- Specialized
A long hollow structure made from boards with a rectangular shape that supports parts of a building
A bright car light that shines straight ahead and should only be used when no other cars are near
A very bright car light that can blind other drivers and is used when no cars are nearby
A strong front light on a car used when no other cars come because it can blind drivers
A headlight setting that lights the road without blinding other drivers
A bright car light that shines far and should be used only when no other cars are ahead
- Specialized
A narrow stream of tiny charged particles used to change material surfaces
- Specialized
A narrow radio signal that helps pilots find the runway in poor visibility
A light on a car that makes a low beam to light the road without hurting other drivers' eyes
- Specialized
A beam that sits below a crane hook to spread weight when lifting heavy objects
How Narrow
Surface Forms
Etymology
Beam for a radio guidance signal builds on the idea of a 'ray' or line you can follow; early pilots used narrow radio 'beams' like lines in the sky to guide them. That's why a radio beam helps planes find the runway.