International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage

Multilingual Technical Dictionary (MTD)
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Term No.Term NameTerm Description
3396Warp1 - A gradual and uniform flaring out between two different side slopes. 2 - See 1438 and 5744......
3334Warped pitching, or Warped beachingPitching on the upstream or downstream sides of hydraulic structures having warped surfaces......
3397Warped transitionA transition in which side walls are warped......
2062Warping, or Commutation methodA process of allowing the tide to overflow low lying lands so as to deposit thereon the silt which it carries in suspension......
5972Wash drill, Wash drillingA device for boring holes through soft material. The drill point is raised and lowered, churning and loosening the material at the bottom of the drive.....
1382Wash loadSuspended material of very small size (generally clays and colloids) originating primarily from erosion on the land slopes of the drainage area and or.....
5168Wash-inHoles formed in the land where water flows downward through the backfilled trench, washing large volumes of soil into a closed drain through the joint.....
6063Wash-out pitA pit at the base of a mixing plant into which the wash water used to clean the mixers and condemned batches are dumped......
4325Washing nozzleNozzle at the end of the jetting pipe......
7890WashlandAn area of the floodplain that is allowed to flood or is deliberately flooded by a watercourse for flood management purposes......
4123Washland storage, or Floodplain storageThe construction of dykes on a floodplain for the storage of flood water, in order to reduce flooding downstream. Schemes may be passive (they flood w.....
4122Washland, or Floodplain1 -An embanked, low-lying land bordering a river or estuary, usually part of the natural floodplain, over which floodwaters are allowed to flow period.....
5368WashoutThe washing out or erosion of earth from the canal banks, below hydraulic structures, caused especially by excessive water velocity and turbulence, ac.....
7212WashoutThe removal of dust, aerosols and gases from the atmosphere by impact with falling raindrops......
7117WasteAny substance, solid, liquid or gaseous, for which no use can be found by the organism or system that produces it, and for which a method of disposal .....
4646Waste channels, or Tail escapes1 -Channels that are extensions of the distribution canal system conveying surplus or unused waters to an outlet such as a stream, a depression of the.....
3238Waste concreteFresh concrete that is rejected before placement because of inferior quality or some other undesirable condition; it includes defective concrete that .....
7541Waste load allocation The result of monitoring and calculations to determine the total maximum daily load for a stream segment......
7537Waste management A comprehensive, integrated, and rational systems approach to the handling and treatment of wastes, to achieve and maintain acceptable environmental q.....
7539Waste processing An operation in which the physical or chemical properties of waste are changed to reduce size and/or volume to facilitate handling......
7538Waste reduction The prevention or restriction of waste generation at its source by redesigning products or the patterns of production and consumption......
7540Waste treatment Any process to which wastewater or industrial waste is subjected to make it suitable for subsequent use or less harmful disposal......
3571Waste waterThe water (excluding that spent in conveyance losses) that is unavoidably to run surplus due to breaches, closures or other mishaps out of water for b.....
6570Waste water re-useThe application of effluent water that has been used by man for one or more purposes for other productive purposes. Examples include the use of surfac.....
7338WastewaterWater carrying dissolved or suspended solids from homes, farms, businesses and industries......
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The Multilingual Technical Dictionary (MTD) is an e-dictionary of all technical terms related to irrigation, drainage, flood management, environment, river training, and allied disciplines of the water sector. Any term/ definition can be printed/copied with the option to download/updates of terms from the ICID website. The MTD enriches the process of sharing and exchange of experiences and has proven to be highly useful for engineers, researchers, students, professionals, planners, designers, academics and all others related to the field of irrigation and drainage.  It is more helpful for professionals outside the water sector, in simplifying the technical jargon and to understand the sectoral nuances easily. 

As part of ICID's flagship activity, it was first published in English and French languages in 1967, the – 4th  edition of the MTD (English-French) was brought out on CD-ROM in the year 2002. Currently, we are following the 5th  edition released in 2009, which defines 9,370 technical terms in Chinese, Japanese and Russian, besides English and French. This online version of MTD is based on the 5th edition's DVD format. This version includes 9370 technical terms with matching English and French translation. The DVD version also includes terms collected in Chinese, Japanese and Russian languages with the active support received from respective National Committees. However, full integration with online versions has not taken place due to the difference in available translation editions/ versions. National Committees of Iran, China, Japan, Russia, Korea, and India are working on the translation/  updating part to match the present online version.

 

The DVD version of the Multilingual Technical Dictionary (MTD) is available for download through the 'Members only' section. After installation, please download the MTD 2.0a Update Patch (2002 version) and update the required files as suggested in the Patch before running the application.

 

MTD 2.0a  Update Patch

This update is for the users of MTD 2.0 who are working on a French Windows Operating System.

Please download the .jar file (icidmtd.jar [126 KB]) and replace the existing file installed in your C:\Program Files\icid-mtd\lib folder.

C:>cd\progra~1\icid-mtd\lib
C:\Program Files\ICID-MTD\LIB