subirrigation /sub-i-ri-gāˈshən/

1. Irrigation by underground pipes
2. Irrigation from beneath

subirrˈigate transitive verb

• bleaching
• bleaching green
• bleaching greens
• bleaching powder
• bleaching powders
• bleachings
• bleak
• bleaker
• bleakest
• bleakly
• bleakness
• bleaknesses
• bleaks
• bleaky
• blear
• bleared
• blearer
• blearest
• blear-eyed
• blearier
• bleariest
• blearily
• bleariness
• blearinesses
• blearing