1. Small genus of densely tufted annual herbs; north temperate regions and South America and tropical Africa and Asia
   - Montia

Type of: caryophylloid dicot genus

Part of: family Portulacaceae, Portulacaceae, purslane family

• hydrogen sulfide
• hydrogen sulphide
• hydrogen-bomb
• hydrogenate
• hydrogenation
• hydrogenise
• hydrogenize
• hydrogenous
• hydrographer
• hydrographic
• hydrographical
• hydrography
• hydroid
• hydroiodic acid
• hydrokinetic
• hydrokinetics
• hydrolise
• hydrolith
• hydrolize
• hydrological
• hydrologist
• hydrology
• hydrolysable
• hydrolysate
• hydrolyse