subirrigate

[ suhb-ir-i-geyt ]
/ sʌbˈɪr ɪˌgeɪt /

verb (used with object), sub·ir·ri·gat·ed, sub·ir·ri·gat·ing.

to irrigate beneath the surface of the ground, as with water passing through a system of underground porous pipes or transmitted through the subsoil from ditches, etc.

Origin of subirrigate

An Americanism dating back to 1900–05; sub- + irrigate
Related formssub·ir·ri·ga·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for subirrigate

subirrigate

/ (sʌbˈɪrɪˌɡeɪt) /

verb

to irrigate (land) by means of an underground system of pipe lines or by natural moisture in the subsoil
Derived Formssubirrigation, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012