drainage
noun
- capacity to release fluid
- removal of fluids
- natural or artificial removal of surface and sub-surface water from an area
- act/process of removing or releasing (usually a fluid), emptying, unfilling, depleting
Wiktionary
Pronunciation: /ˈdɹeɪnəd͡ʒ/
noun
Etymology: Etymology tree Proto-Indo-European *dʰer-der. Proto-Indo-European *dʰrewgʰ-der. Proto-Germanic *draugiz Proto-Germanic *drauhnōną Proto-West Germanic *drauhnōn Old English drēahnian Middle English *dreinen English drain Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Italic *-ātos Latin -ātus Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icus Latin -āticus Latin -āticum Old French -agebor. Middle English -age English -age English drainage From drain + -age.
- A natural or artificial means for the removal of fluids from a given area by its draining away.
“It should move NR away from previous examples of repairs that have treated the symptoms (fixing the landslip) but not fixed the underlying cause (poor drainage), with the result that a second slip followed.”
- A system of drains.
- A downward wind.
“In the forward part of the cyclone, drainage katabasis is checked; but its highest intensity is observed in the rear part of the cyclone.”