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WordNet-Online
Definitions from WordNet | ||||
Definitions from the WebHeliopauseDefinition: The heliopause is the boundary or outer edge of the heliosphere, where the solar wind from the Sun meets the interstellar medium. Sense 1 (Noun): The region in space where the influence of the Sun's solar wind ends and the interstellar medium begins. Sample Sentence: Voyager 1 spacecraft crossed the heliopause in 2012, becoming the first man-made object to enter interstellar space. Sense 2 (Noun): The boundary that defines the outer limit of a planetary system. Sample Sentence: The heliopause of our solar system extends beyond Pluto's orbit. Sense 3 (Noun): The imaginary boundary where the solar wind pressure equals the pressure of the interstellar medium. Sample Sentence: The heliopause acts as a shield, protecting our solar system from most cosmic radiation from outside. Sense 4 (Adjective): Referring to anything related to or situated at the heliopause. Sample Sentence: The heliopause measurements provide valuable data about the interstellar environment. | ||||
heliobacter heliobacter pylori heliocentric heliocentric parallax heliogram heliograph heliogravure heliolatry heliopause heliophila heliophobia helioport heliopsis helios heliosphere heliostats heliotherapy
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