helioseismologyn.
/ˌhiːlɪəʊsʌɪzˈmɒlədʒi/, U.S. /ˈˌhiliəˌsaɪzˈmɑlədʒi/ Astronomy.
The study of the sun's interior by the observation and analysis of oscillations at its surface. Cf. asteroseismology n.
ΚΠ
1979 Soviet Astron. 23 641 The history of ‘helioseismology’ may briefly be described.
1983 Solar Physics 82 106 We now turn to the use of these measurements as diagnostic in the context of helioseismology.
1988 Nature 15 Dec. 618/2 Just as geoseismology elucidates the inner structure of the Earth, so helioseismology reveals the inner structure of the Sun.
2000 Astron. Soc. Pacific Conf. Series 198 353 We compare the results with the surface rotational rates of stars with the same mass as the Sun in earlier evolutionary stages and with the present angular momentum of the Sun as deduced from helioseismology.
This is a new entry (OED Third Edition, September 2002; most recently modified version published online March 2022).
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n.1979