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hydraulic brake
hydraulic coupling
hydraulic press
hydraulic ram
hydraulics
hydrazide
hydrazine
hydrazoic acid
hydric
hydride
hydrilla
hydriodic acid
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hydroacoustics
hydrobiology
hydroboration
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hydranth

hy·dranth [ h drànth ] (plural hy·dranths)


noun 
Definition:
 
sedentary form of cnidarian: the sedentary form in the life cycle of a cnidarian such as a sea anemone or a hydra

[Late 19th century. <hydra + Greek anthos "flower"]
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