a drain placed beneath the surface of cultivated fields, streets, etc
transitive verb
2.
to equip or supply with an underdrain or underdrains
Word origin
[1795–1805; under- + drain]This word is first recorded in the period 1795–1805. Other words that entered Englishat around the same time include: hopscotch, kingpin, sensitivity, steeplechase, wreckerunder- is a prefixal use of under, as to indicate place or situation below or beneath (underbrush; undertow); lower in grade or dignity (undersheriff; understudy); of lesser degree, extent, or amount (undersized); or insufficiency (underfeed)
Examples of 'underdrain' in a sentence
underdrain
Underdrain flow was significantly cleaner than untreated road runoff for all monitored pollutants.
Rebecca A. Purvis, Ryan J. Winston, William F. Hunt, Brian Lipscomb, Karthik Narayanaswamy,Andrew McDaniel, Matthew S. Lauffer, Susan Libes 2018, 'Evaluating the Water Quality Benefits of a Bioswale in Brunswick County, North Carolina(NC), USA', Waterhttp://www.mdpi.com/2073-4441/10/2/134. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
To increase infiltration and pollutant removal, bioswales are designed with an underlying soil media and an underdrain.
Rebecca A. Purvis, Ryan J. Winston, William F. Hunt, Brian Lipscomb, Karthik Narayanaswamy,Andrew McDaniel, Matthew S. Lauffer, Susan Libes 2018, 'Evaluating the Water Quality Benefits of a Bioswale in Brunswick County, North Carolina(NC), USA', Waterhttp://www.mdpi.com/2073-4441/10/2/134. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In particular, we analyze four outflow structures: a rectangular-notch weir, a v-notch weir, a round orifice, and an underdrain.
Ahmad Chehab 2010, 'Stormwater Management System Drawdown', Undergraduate Journal of Mathematical Modeling: One + Twohttp://scholarcommons.usf.edu/ujmm/vol3/iss1/27. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)