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heavy water
heavy-water reactor
heavyset
heavyweight
Heb.
hebdomad
hebdomadal
Hebdomadal Council
Hebe
hebe
Hebei
hebetude
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heavy hydrogen
heav·y hy·dro·gen


noun 
Definition:
 
isotope of hydrogen: an isotope of hydrogen with a mass number greater than one, especially deuterium
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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