héliogaine

== French == === Etymology === From hélio- (“helio-”) +‎ gaine (“sheath”). === Pronunciation === (mute h) IPA(key): /e.ljɔ.ɡɛn/ === Noun === héliogaine f (plural héliogaines) (astronomy) heliosheath ==== Coordinate terms ==== choc terminal onde de choc espace interstellaire vent solaire vent stellaire vent interstellaire ==== Related terms ==== héliopause héliosphère === Further reading === “héliogaine”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012