ExpertGlossary terms starting with I

2,197 terms

  1. Ipso jure By the law itself.
  2. IPSRU Inertial Pseudo-Star Reference Unit.
  3. IPT (1) Integrated Product Team. (2) Integrated Process Team. (3) Integrated Planning Team.
  4. IPTF Abbreviation for Infrastructure Protection Task Force.
  5. IPTG Abbreviation for isopropyl-3-D-thiogalactopyranoside. A synthetic inducer of beta-galactosidase activity in many bacteria.
  6. IPV Improve
  7. IPX Abbreviation for Internetwork Packet Exchange. A proprietary (LAN) protocol.
  8. IPX/SPX Communications protocol used by Novell networks.
  9. IQT Initial Qualification Training (ILS term).
  10. IR Infrared Satellite Imagery
  11. IR Electro-Optics Technologies/techniques employed by optical sensors in the wavelength spectrum slightly longer than visible but shorter than radio.
  12. IR&D Independent Research and Development. (Also called IRAD).
  13. IR/Vies Infrared Visual.
  14. IR/Vis Infrared Visual.
  15. IRA Industrial Resource Analysis.
  16. IRA rollover If you move assets from an existing individual retirement account (IRA) or an employer sponsored retirement plan to an IRA, you've completed an IRA…
  17. IRAD Independent Research and Development.
  18. IRAS Infrared Astronomical Satellite.
  19. IRB A group of scientists, doctors, clergy, and consumers that reviews and approves the action plan for every clinical trial.
  20. IRBM Intermediate Range Ballistic Missile.
  21. IRBS (1) Infrared Background Sensor. (2) Intermediate-Range Booster System.
  22. IRC Abbreviation for Internet relay chat. A service for conducting a chat on the Internet, i.e.
  23. IRC Section 401(a) Tax code section authorizing a qualified retirement plan to be operated and supported by an employer and to provide retirement benefits.
  24. IRCM Infrared Countermeasures.
  25. IRD Interface Requirements Document.
  26. Iressa (i-REH-suh) A drug that is used to treat certain types of non-small cell lung cancer and is being studied in the treatment of other types of cancer.
  27. IRFP International Request for Proposals (Contracting term).
  28. IRFPA Infrared Focal Plane Array.
  29. IRG Independent Review Group.
  30. IRIA Infrared Information Analysis Center.
  31. Iridescence Brilliant spots or borders of colors in clouds, usually red and green, caused by diffraction of light by small cloud particles.
  32. Iridescent Clouds Clouds that exhibit brilliant bright spots, bands, or borders of colors, usually red and green, observed up to about 30 degrees from the sun.
  33. IRIG Inter-Range Instrumentation Group.
  34. irinotecan An anticancer drug that is a type of topoisomerase inhibitor. It is a camptothecin analog. Also called CPT 11.
  35. IRINT Infrared Intelligence.
  36. IRIS (I-ris) The colored tissue at the front of the eye that contains the pupil in the center.
  37. Iris Recognition A biometric modality that uses an image of the physical structure of an individual's iris for recognition purposes, as illustrated below.
  38. IrisCode© A biometric feature format used in the Daugman iris recognition system.
  39. IRLA Item Repair Level Analysis ILS term).
  40. IRM Information Resources Management.
  41. IRMAC Information Resource Management Advisory Committee. 146
  42. IRMC Information Resource Management College.
  43. irofulven (i-roh-FUL-ven) A substance being studied in the treatment of some types of cancer. Irofulven attaches to the cell's DNA and may block cancer cell growth.
  44. iron (I-urn) An important mineral the body needs to make hemoglobin, a substance in the blood that carries oxygen from the lungs to tissues throughout the body.
  45. IRR Internal Requirements Review.
  46. Irradiance The direct, diffuse, and reflected solar radiation that strikes a surface.
  47. Irradiate Application of radiation from a source (heat, light, Xrays) to a structure or organism.
  48. irradiated Treated with radiation.
  49. irradiation (ih-RAY-dee-AY-shun) The use of high-energy radiation from x-rays, gamma rays, neutrons, protons, and other sources to kill cancer cells and shrink tumors.
  50. IRRAS Integrated Reliability and Risk Analysis System.
  51. Irrelevant facts Evidence that does not tend to prove or disprove any issue of fact involved in a case.
  52. Irretrievable Commitments that are lost for a period of time.
  53. Irreversibilities Changes that, once set in motion, cannot be reversed, at least on human time scales.
  54. Irreversible Commitments that cannot be reversed, except perhaps in the extreme long term.
  55. irreversible encryption Encryption that produces ciphertext from which the original data cannot be reproduced. Note: Irreversible encryption is useful in authentication.
  56. irreversible toxicity (eer-ih-VER-sih-bul tok-SIH-sih-tee) Side effects that are caused by toxic substances or something harmful to the body and do not go away.
  57. Irrevocable trust An irrevocable trust is a legal agreement whose terms cannot be changed by the creator or grantor who establishes the trust without the consent of the…
  58. Irrigable acreage for service (irrigable area for service) The acreage classified as irrigable for which project works have been constructed and project water is available.
  59. Irrigable area not for service Part of the total irrigable area for which service eventually will be available but for which project facilities have not yet been constructed.
  60. Irrigable land Arable land under a specific plan for which a water supply is or can be made available and which is provided with or planned to be provided with…
  61. Irrigated acreage Irrigable acreage actually irrigated in any one year. It includes irrigated cropland harvested, irrigated pasture, cropland planted but not harvested, and…
  62. Irrigated Area The gross farm area upon which water is artificially applied for the production of crops, with no reduction for access roads, canals, or farm buildings.
  63. Irrigation The controlled application of water for agricultural purposes through manmade systems to supply water requirements that are not satisfied by rainfall.
  64. Irrigation check Small dike or dam used in the furrow alongside an irrigation border to make the water spread evenly across the border.
  65. Irrigation district A cooperative, self-governing public corporation set up as a subdivision of the State government, with definite geographic boundaries, organized and…
  66. Irrigation Efficiency The ratio of the average depth of irrigation water that is beneficially used to the average depth of irrigation water applied, expressed as a percent.
  67. Irrigation Non-Expansion Area (INA) A geographic area in Arizona that has been designated as having insufficient groundwater to provide a reasonably safe supply for the irrigation of the…
  68. Irrigation Requirement Quantity of water, exclusive of effective precipitation, that is required for crop production. See crop irrigation requirement.
  69. IRRS Information Resources Requirements Study.
  70. IRS Interface Requirements Review.
  71. IRS e-file Refers to the preparation and transmission of tax return information to the IRS using telephone lines or a computer with a modem or Internet access.
  72. IRSS Infrared Sensor System (EAGLE).
  73. IRST Infrared Search and Track.
  74. IRTF Internet Research Task Force.
  75. IS Information System.
  76. IS (information systems) infrastructure, processes, and technologies used to store, generate, manipulate, and transmit information to support an organization Also referred to as…
  77. IS element Abbreviation for insertion sequence element. A short (800-1400 nucleotide pairs) found in bacteria that is capable of transposing to a new genomic…
  78. IS&T (1) Invite, Show and Test. (2) Innovative Science and Technology.
  79. is-a A relationship between two objects in which one object is considered to be a more specific version of the other, generic object: "A camel is a mammal.
  80. is-a relationship See inheritance.
  81. IS/IT (Information Systems or Information Technology) Usually refers to the people who make computers and computer systems run.
  82. IS/IT (Information Systems or Information Technology) Terms used to describe the people who make computers and/or make computer systems run.
  83. ISA Industry Standard Architecture.
  84. Isallobar A line of equal change in atmospheric pressure during a specified time period.
  85. ISAPI Internet Server Application Programming Interface. A Web server application-development interface, developed by Process Software and Microsoft, that can…
  86. ISAR Inverse Synthetic Aperture Radar.
  87. ISAS Institute of Space and Astronautical Science (Japan).
  88. ISB Abbreviation for independent sideband. See independent-sideband transmission.
  89. ISC (1) Information Systems Command. (2) Irvine Sensors Corporation.
  90. iSCSI (Internet SCSI) Small Computer System Interface protocol over an IP network.Unlike other network storage protocols, such as Fibre Channelwhich is the foundation of most…
  91. iSCSI Initiator A hardware or software client-side protocol that opens the communication with an iSCSI target server in an IP SAN.
  92. iSCSI Target The storage server that receives commands from the iSCSI intiator.
  93. ISDN Integrated Services Digital Network.
  94. ISDN (Integrated Services Digital Network) An all digital network which can carry data, video and voice.
  95. ISDN user part (ISUP) The functional part of the Signaling System No. 7 (SS7) protocol, i.e., the part that specifies the interexchange signaling procedures for the set up and…
  96. ISE (1) Integrated SATKA Experiments. (2) Integrated Space Experiment.
  97. ISE&I Israeli System Engineering and Integration.
  98. iseganan hydrochloride (i-seh-GAN-an HY-droh-KLOR-ide) A substance being studied in the treatment of oral mucositis (painful mouth sores) caused by cancer therapy and other…
  99. Isentropic Analysis A way in the forecaster can look at the atmosphere in 3-dimensions instead of looking at constant pressure surfaces (such as the 850 mb, 700 mb, 500 mb…
  100. Isentropic Lift Lifting of air that is traveling along an upward-sloping isentropic surface. Isentropic lift often is referred to erroneously as overrunning, but more…