chapman/ʹchapmən/ noun (pl chapmen)

• hydrodynamics
• hydroelectric
• hydrofluoric acid
• hydrofoil
• hydroforming
• hydrogel
• hydrogen
• hydrogenase
• hydrogenate
• hydrogen bomb
• hydrogen bond
• hydrogen bromide
• hydrogen chloride
• hydrogen cyanide
• hydrogen fluoride
• hydrogen iodide
• hydrogen ion
• hydrogen peroxide
• hydrogen sulphide
• hydrogeology
• hydrography
• hydroid
• hydrokinetic
• hydrokinetical
• hydrolase