Beam splitter
a mirror or prism that divides a beam of light into two parts by reflecting a part of the beam, used in camera range finders.
noun
a system that divides a beam of light, electrons, etc, into two or more paths
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- Beam trawl
a trawl net whose lateral spread during trawling is maintained by a beam across its mouth.
- Beam weapon
a laser-beam or particle-beam weapon.
- Beam wind
a wind blowing against a vessel from a direction at right angles to its keel. historical examples when all was ship-shape, the mary thomas was lying gallantly over on her side to a beam wind and plunging ahead due south. dutch courage and other stories jack london when they were come out of the cabin […]
- Beam-powered propulsion
noun a cl-ss of propulsion mechanism that beams energy beamed to a sp-cecraft or other machine from a remote power source examples beam-powered propulsion allows sp-ce machines and robots to be recharged from a distance. word origin 1964 usage note also beam-powered technology
- Beam-powered technology
noun see beam-powered propulsion