sub·ir·ri·ga·tion
ˌsəb-ˌir-ə-ˈgā-shən
: irrigation below the surface (as by a periodic rise of the water table or by a system of underground porous pipes)
sub·irrigate
"+
: to water from beneath (as by the periodic rise of a water table)
especially
: to irrigate below the surface (as by a system of underground porous pipes)
Cite this Entry
“Subirrigation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subirrigation. Accessed 7 Jul. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
