Dictionary: A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z


an emanation from the sun’s corona consisting of a flow of charged particles, mainly electrons and protons, that interacts with the magnetic field of the earth and other planetary bodies.
the constant stream of charged particles, esp protons and electrons, emitted by the sun at high velocities, its density and speed varying during periods of solar activity. It interacts with the earth’s magnetic field, some of the particles being trapped by the magnetic lines of force, and causes auroral displays See also Van Allen belt, magnetosphere
solar wind
A continuous stream of plasma ejected by the Sun, flowing outward from the corona. This plasma, which consists mostly of protons and electrons, has enough energy to escape the Sun’s gravitational field at speeds ranging from about 300 to 800 km (186 to 496 mi) per second and averaging 1,610,000 km (1,000,000 mi) per hour, which allows the solar wind to reach Earth in about 3.9 days. The speed and intensity of the solar wind depends on magnetic activity at different regions of the Sun. The solar wind spreads out from the Sun in a pinwheel pattern as a result of the Sun’s rotation, pushing back the interstellar medium to the boundary known as the heliopause. The tails of comets, which always extend away from the Sun regardless of the direction of the comet’s motion, are a result of the impact of solar wind, which dislodges ice and other particles from the comet’s surface. Similar winds flowing from other stars are called stellar winds. See also aurora.

solar wind definition

A stream of particles (mostly protons) emitted by the sun and permeating the solar system.

Note: Particularly strong bursts of particles can penetrate the upper atmosphere and disrupt radio communications on Earth.


Read Also:

  • Solar-year

    noun 1. year (def 4b). noun 1. a period of 365 or 366 days, in the Gregorian calendar, divided into 12 calendar months, now reckoned as beginning Jan. 1 and ending Dec. 31 (calendar year or civil year) Compare common year, leap year. 2. a period of approximately the same length in other calendars. 3. […]

  • Solate

    verb (used with object), solated, solating. Chemistry. 1. to change from a gel to a sol.

  • Solated

    verb (used with object), solated, solating. Chemistry. 1. to change from a gel to a sol.

  • Solatia

    noun, plural solatia [soh-ley-shee-uh] /soʊˈleɪ ʃi ə/ (Show IPA) 1. something given in compensation for inconvenience, loss, injury, or the like; recompense. 2. Law. damages awarded to a plaintiff as compensation for personal suffering or grief arising from an injury. noun (pl) -tia (-ʃɪə) 1. (law, mainly US & Scot) compensation awarded to a party […]

Disclaimer: Solar-wind definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.