English word helioseismological comes from English seismological (Relating to seismology.), English helio- (Concerning the sun.)

Detailed word origin of helioseismological

Dictionary entry	Language	Definition
seismological	English (eng)	Relating to seismology.
helio-	English (eng)	Concerning the sun.
helioseismological	English (eng)	Of or pertaining to helioseismology.

Words with the same origin as helioseismological