Definition of helioseismology
:the study of vibrations in the material that makes up the Sun
- Scientists have discovered that the sun is vibrating, and they can detect this “global oscillation” using the new techniques of “helioseismology,” which are similar to those used in terrestrial seismology.
- —Madeleine Jacobs, Chicago Tribune, 29 Dec. 1985
Writing? Check your grammar now!