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
2878Gate sealLeakage preventing material or device provided at the sides and bottom of the gates, it can be at the top also when the gate is submerged under water......
6253Gate strokingA computerized, centralized control method for canals, based on continuous gate motions or a series of discontinuous gate motions that produce predete.....
3402Gate transitionsClosed conduit transitions provided on both sides of the gate recess or chamber. Similar are valve transitions......
2991Gate valveIt is a shut-off device used in a pipe. The pipe is closed with a wedge-shaped plug or gate that can be moved up and down, perpendicular to the pipe a.....
3447Gated-offtake regulatorAn offtake regulator provided with gates, stoplogs, drop bars, etc.; or a combination of them......
2231GatesA device to stop or release water through a passage. For various types see sub-head V.4 `Gates and valves`......
8166Gatewaya communications device/program that passes data between networks with similar functions but dissimilar implementations. Today, the term ‘router’ .....
1178Gauge datumThe elevation of the zero of a staff gauge or other indicator of water depth above a certain reference level......
1182Gauge lineThe line across a channel passing through a given gauge......
1183Gauge line pillarsThe structural landmarks fixing the position of the gauge line......
1190Gauge well, Stilling well, Float well, or Recorder well1 – A chamber or a compartment with closed sides and bottom, provided with an inlet or inlets communicating with the river or canal. Its purpose is .....
1181Gauge, or Gage (USA)An instrument, contrivance, graduated scale or other device installed at a gauging station for observing or recording the stage of a stream......
1173Gauging station A selected site on a stream equipped and operated to furnish basic data from which systematic records of discharge may be derived......
3456GEC-Alsthom regulatorA semi-module evolved by the Neyrpic Laboratories (Grenoble) that has an inclined plate or check plate designedly located a little downstream from the.....
3286GelA jelly-like material formed by coagulation of a colloidal liquid or soil......
5997Gelatin dynamiteA jellylike explosive, entirely waterproof, made by dissolving nitrocotton in nitroglycerin......
7066GenecologyThe study of the genetical composition of plant populations in relation to their habitat......
8628General appraisal planningBroad evaluation of alternative measures for meeting hypothesized goals and objectives, with recommendations for action plans and programmes by specif.....
9315General Equilibrium AnalysisAn approach that considers simultaneously all the markets in an economy, allowing for feedback effects between individual markets......
3117General movement of bed loadThe stage of movement when all sediment sizes of the bed material are in motion and the movement is strong enough to develop bed configuration......
9058General provisions (specifications)Provisions in the specifications that apply to the work as a whole......
8167General Purpose Interface Bus (GPIB)A BUS specification standard (IEEE 488) for controlling peripheral devices......
2621General shear failureA failure caused by the impairment due to excessive movement of the structure resting on the soil that has mobilised its ultimate strength along the p.....
6835Genus (pl. Genera)Category of biological classification comprising a group of similar species......
3159Geo-textile liningAny fabric or textile (natural or synthetic) used in conjunction with soil, foundations, or rock in the lining of canals......
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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.