1. Tuberous perennial having a cowl-shaped maroon or violet-black spathe; Mediterranean; Canaries; Azores
   - friar's-cowl

Type of: aroid, arum

Part of: Arisarum, genus Arisarum

• Hydrochoerus hydrochaeris
• hydrocolloid
• hydrocortisone
• Hydrocortone
• hydrocracking
• hydrocyanic
• hydrocyanic acid
• Hydrodamalis
• Hydrodamalis gigas
• HydroDIURIL
• hydrodynamic
• hydrodynamics
• hydroelectric
• hydroelectric turbine
• hydroelectricity
• hydroflumethiazide
• hydrofluoric acid
• hydrofluorocarbon
• hydrofluosilicic acid
• hydrofoil
• hydrogel
• hydrogen
• hydrogen atom
• hydrogen azide
• hydrogen bond