solar wind

This term describes a plasma-based phenomenon rather than a traditional atmospheric wind. It is used exclusively in astrophysical and planetary science contexts to describe the outward flow of ionized gas from the Sun. Because it refers to a specific, singular cosmic process, it is treated as an uncountable mass noun.

In technical discourse, it is frequently paired with terms like "geomagnetic storm" or "heliosphere" to describe the interaction between the Sun's output and planetary magnetic fields. It should not be confused with "solar flares," which are sudden eruptions of energy, whereas the solar wind is a constant, steady stream.