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hydroxide
hydroxide ion
hydroxy
hydroxyapatite
hydroxychloroquine
hydroxyl
hydroxyl ion
hydroxylamine
hydroxylate
hydroxyproline
hydrozoan
Hydrus
hyena
hyetal
hyeto-
hyetograph
Hygeia
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hydrotaxis
hy·dro·tax·is [ hdrə táksiss ]


noun 
Definition:
 
response to water: the response of an organism or cell to the presence of water or moisture, usually detected as movement

hy·dro·tac·tic [ hdrə táktik ] adjective
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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