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hydrazide
hydrazine
hydrazoic acid
hydric
hydride
hydrilla
hydriodic acid
hydro
hydro-
hydroacoustics
hydrobiology
hydroboration
hydrobromic acid
hydrocarbon
hydrocele
hydrocellulose
hydrocephalus
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hydro-
hydro-


prefix 
Definition:
 
1. water, liquid, moisture
hydrobiology
2. hydrogen
hydrocarbon
[< Greek hudr-, stem of hudōr "water" < Indo-European]
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