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hydrostatics
hydrosulfide
hydrotaxis
hydrotherapeutics
hydrotherapy
hydrothermal
hydrothermal metamorphism
hydrothorax
hydrotropism
hydrous
hydroxide
hydroxide ion
hydroxy
hydroxyapatite
hydroxychloroquine
hydroxyl
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hydrotropism
hy·drot·ro·pism [ hī dróttrə pìzzəm ]


noun 
Definition:
 
movement influenced by water: movement by a plant part such as a root toward or away from a source of water

hy·dro·tro·pic [ hdrə trṓpik, hdrə tróppik ] adjective
hy·dro·tro·pi·cal·ly [ hdrə tróppikəlee ] adverb
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