International Commission on Irrigation & Drainage Commission Interationale des Irrigation et du Drainage
Term No. | Term Name | Term Description |
8670 | Kalman-filter | A linear system in which the mean-squared error between the desired output and the actual output is minimized when the input is a random signal genera..... |
8843 | Kanat, Foggara, Karez (used in Baluchistan), Rhettara (used in Morocco), or Qanat (used in Iran) | Subsurface gallery for water supply starting from below the water table and sloping downwards to the ground surface with a gradient flatter than both ..... |
5511 | Kankar, Bloc kankar, Nodular kankar | A nodular variety of limestone that is of spongy nature, containing some quantity of clayey and siliceous matter. It is found either in layers or bloc..... |
5461 | Kaolin, China clay, or Porcelain clay | A white clay, essentially hydrated aluminium silicate, resulting from the decomposition of feldsparic rocks...... |
5460 | Kaolinite | A group of clay minerals, crystallizing in the monoclinic system, with chemical formula 2SiO2, Al2O3,2H2O and occurring as minute equidimensional flak..... |
4516 | Kaplan pump | A propeller type pump having adjustable blade impeller...... |
8754 | Karman street, or Karman vortex trail | The trail of vortices occurring in the wake of a body, after boundary layer separation has taken place...... |
2133 | Katteklei | A Dutch term. Iron sulphide containing material formed from brackish-water clay as the result of the oxidation of iron sulphate which gave acid and ir..... |
8191 | kbps (kilobits per second) | A unit of data rate where 1 kb/s = 1000 bits per second. This contrasts with units of storage where 1 Kb = 1024 bits (note upper case K)...... |
4335 | Kelly, or Grief stem | The uppermost joint of the drill string, square or hexagonal in cross-section, rather than circular, which permits the string to be rotated by the rot..... |
4336 | Kellydrive bushing | A cylindrical connection or drive with two lugs on opposite sides, between the kelly and the drill...... |
347 | Kelvin (K) | The kelvin, unit of thermodynamic temperature, is the fraction 1/273.16 of the thermodynamic temperature of the triple point of water...... |
1210 | Kelvin tube | A device for measuring the depth of water, consisting of a glass tube with a chemical inside fixed in a lead tube. It is thrown into the water and tak..... |
3143 | Kennedy`s equation | An empirical equation that applies to channels with erodible boundaries in alluvial soils carrying small sediment loads expressed as Vo = 0.55 db0.64 ..... |
3817 | Kerb inlet, or Scupper | Apertures at the bottom of the kerb face to dispose of rain water...... |
3816 | Kerb, Kirb, Curb, Wheel guards, Fender curbs | 1 - Raised strips on the sides of the roadway width of a bridge for use by pedestrian traffic and also for confining vehicular traffic within the road..... |
8485 | Kernel | The essential part of Unix or other operating systems, responsible for resource allocation, low-level hardware interfaces, security etc. See also micr..... |
2553 | Key wall | A cutoff wall extending from the cutoff trench into the bed rock or the impervious subsurface stratum...... |
2515 | Key way, or Offset | Indentation or projection of some geometrical shape built or formed into poured surfaces to provide a degree of integral action with subsequent struct..... |
8373 | Keyboard | A peripheral device consisting of alphanumerics, punctuation marks, and other special function keys that are mechanically arranged to allow the entry ..... |
9326 | Keystone Species | A species that has a central servicing role affecting many other organisms and whose demise is likely to result in the loss of a number of species and..... |
4454 | Kharbauwy | An Egyptian water lifting device used in areas where the lift is from 0.6 to 1.0 metre. It is an improved paddle wheel worked by animal power. Instead..... |
3984 | Kharif crop (Bangladesh, India and Pakistan) | Summer crop or monsoon crop...... |
4446 | Kili | A term used in India for a system of working the rope-and-bucket lift. In this system, the rope is fastened to the yoke by a wedge and when the cattle..... |
737 | Killing frost, Ground frost (UK) | A freezing condition sufficiently injurious to vegetation to end the growing season. In the United Kingdom this is considered to have occurred when a ..... |
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