Hydro-
Pronunciation : Hy"dro-
Part of Speech : Hy"dr-.
Definition : 1. A combining form from Gr. Hydra).
2. (Chem.)
Defn: A combining form of hydrogen, indicating hydrogen as an ingredient, as hydrochloric; or a reduction product obtained by hydrogen, as hydroquinone.
Source : Webster's Unabridged Dictionary, 1913