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heliograph
heliolatry
heliolithic
heliometer
heliopause
heliophyte
Heliopolis
Helios
helioseismology
heliosphere
heliostat
heliotaxis
heliotherapy
heliotrope
heliotropism
heliozoan
helipad
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helioseismology
he·li·o·seis·mol·o·gy [ hlee ō sīz mólləjee ]


noun 
Definition:
 
study of Sun's sound waves: the scientific study of the sound waves in the Sun's atmosphere
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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