underdrainage
Drainage by means of an underdrainDrainage by means of an underdrain.
Meaning
2 senses(uncountable)Drainage by means of an underdrain.
(uncountable)Insufficient drainage.
Origin
From under- + drainage.From under- + drainage.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable