hydrogéné, -e, adj., (chem.) hydrogenated, combined with hydrogen.
hydrogéner, v.a., to hydrogenize.
hydrographe, n.m., hydrographer.
hydrographie, n.f., hydrography.
hydrographique, adj., hydrographical.
hydrolithe, n.f., hydrolite.
hydrologie, n.f., hydrology.
hydromancie, n.f., hydromancy.
hydromel, n.m., hydromel, mead. — vineux; metheglin, mead.
hydromètre, n.m., hydrometer.