subirrigation /sub-i-ri-gāˈshən/

1. Irrigation by underground pipes
2. Irrigation from beneath

subirrˈigate transitive verb

• niche markets
• nicher
• nichered
• nichering
• nichers
• niches
• niching
• Nichrome
• nicish
• nick
• Nick
• nickar
• nicked
• nickel
• nickel-and-dime
• nickelback
• nickel-bloom
• nickeled
• nickelic
• nickeliferous
• nickeline
• nickelines
• nickeling
• nickelise
• nickelised