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solar sail

noun

  1. Aerospace. a design concept for spacecraft propulsion consisting of a very thin, very large sheet of highly polished material that would be driven by the pressure of sunlight.

solar sail

noun

  1. a device that reflects light particles from the Sun, gaining momentum in the opposite direction to propel spacecraft forwards

solar sail

  1. A saillike device that is made of lightweight and highly reflective material and attached to a spacecraft to harness the radiation pressure of the solar wind and light for propulsion.
  2. Also called light sail

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Word History and Origins

Origin of solar sail1

First recorded in 1955–60

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