spherics¹ or (N American) sferics /sferˈiks or sfēˈriks/

• hydro
• hydro-
• hydro-aeroplane
• hydro-aeroplanes
• hydro-airplane
• hydro-airplanes
• hydrobiological
• hydrobiologies
• hydrobiologist
• hydrobiologists
• hydrobiology
• hydrobromic
• hydrocarbon
• hydrocarbons
• hydrocele
• hydroceles
• hydrocellulose
• hydrocelluloses
• hydrocephalic
• hydrocephalous
• hydrocephalus
• hydrocephaluses
• Hydrocharis
• Hydrocharitaceae
• hydrochloric