helioseismologistn.
/ˌhiːlɪəʊsʌɪzˈmɒlədʒɪst/, U.S. /ˈˌhiliəsaɪzˈmɑlədʒəst/ Astronomy.
An expert in or student of helioseismology.
ΚΠ
1983 Solar Physics 82 466 May the helioseismologists ultimately be as successful!
1990 New Scientist 27 Jan. 47/2 The many modes enable helioseismologists to chart how the speed of sound changes with depth below the surface and how quantities such as temperature, composition and internal rotation vary within the sun.
1999 Astrophysics & Space Sci. 261 17 Helioseismologists now have data on in excess of 20000 oscillation frequencies ν of the modes known collectively as the 5 minute oscillations.
This is a new entry (OED Third Edition, September 2002; most recently modified version published online March 2022).
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n.1983