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drainage ['dreɪnɪʤ] n
econ.	صرف صِحِّيّ
med.	نََزْح
UN, econ.	تصريف
water.res.	صرف   ؛الصرف
drainage 1. Removal of groundwater or surface water, or of water from structures, by gravity or pumping. 2. The discharge of water from a soil by percolation (the process by which surface water moves downwards through cracks, joints and pores in soil and rocks) adj.
environ.	صرف صحي
English thesaurus
drainage ['dreɪnɪʤ] abbr.
abbr., agric.	dnge
abbr., oil	d   ؛drng

drainage: 65 phrases in 11 subjects

Animal husbandry	2
Economy	1
Environment	5
Food industry	5
Hydrology	1
Name of organization	2
Oil / petroleum	2
Soil science	2
Technology	1
Waste management	1
Water resources	43