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helianthemum
helianthus
helibiking
heliborne
helic-
helical
helical gear
helicase
helices
helichrysum
helico-
Helicobacter pylori
helicograph
helicoid
helicon
helicopter
helicopter gunship
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helices
hel·i·ces
Definition:
 
mathematics anatomy 
Plural of  helix
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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