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ddt

DDT
D d

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • /ˌdi.ˌdi.ˈtiː/
    • /ˌdi:.ˌdiː.ˈtiː/
    • US Pronunciation
    • US IPA
    • /ˌdi.ˌdi.ˈtiː/

Definitions of ddt word

  • uncountable noun ddt DDT is a poisonous substance which is used for killing insects. 3
  • noun ddt dichlorodiphenyltrichloroethane; a colourless odourless substance used as an insecticide. It is toxic to animals and is known to accumulate in the tissues. It is now banned in the UK 3
  • noun ddt a powerful insecticide (ClC6H4)2CHCCl3, effective upon contact: its use is restricted by law due to damaging environmental effects 3
  • noun Definition of ddt in Technology 1. Generic term for a program that assists in debugging other programs by showing individual machine instructions in a readable symbolic form and letting the user change them. In this sense the term DDT is now archaic, having been widely displaced by "debugger" or names of individual programs like "adb", "sdb", "dbx", or "gdb". 2. Under MIT's fabled ITS operating system, DDT (running under the alias HACTRN) was also used as the shell or top level command language used to execute other programs. 3. Any one of several specific debuggers supported on early DEC hardware. The DEC PDP-10 Reference Handbook (1969) contained a footnote on the first page of the documentation for DDT that illuminates the origin of the term: Historical footnote: DDT was developed at MIT for the PDP-1 computer in 1961. At that time DDT stood for "DEC Debugging Tape". Since then, the idea of an on-line debugging program has propagated throughout the computer industry. DDT programs are now available for all DEC computers. Since media other than tape are now frequently used, the more descriptive name "Dynamic Debugging Technique" has been adopted, retaining the DDT abbreviation. Confusion between DDT-10 and another well known pesticide, dichloro-diphenyl-trichloroethane (C14-H9-Cl5) should be minimal since each attacks a different, and apparently mutually exclusive, class of bugs. (The "tape" referred to was, incidentally, not magnetic but paper.) Sadly, this quotation was removed from later editions of the handbook after the suits took over and DEC became much more "businesslike". The history above is known to many old-time hackers. But there's more: Peter Samson, compiler of the original TMRC lexicon, reports that he named "DDT" after a similar tool on the TX-0 computer, the direct ancestor of the PDP-1 built at MIT's Lincoln Lab in 1957. The debugger on that ground-breaking machine (the first transistorised computer) rejoiced in the name FLIT (FLexowriter Interrogation Tape). 1
  • noun ddt (Countable Noun) (professional wrestling) a move where a wrestler puts another wrestler into a standing front face lock and then falls backwards, driving the recipient's head into the floor. 0
  • noun ddt (Uncountable Noun) Abbreviation of dichlorodiphenyltrichloroethane (an insecticide). 0
See all 6 definitions of ddt

Information block about the term

Parts of speech for Ddt

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Full grammatical hierarchy of Ddt

ddt popularity

A common word. It’s meaning is known to most children of preschool age. About 87% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".

ddt usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for ddt

noun ddt

  • pesticide — a chemical preparation for destroying plant, fungal, or animal pests.
  • fungicide — a substance or preparation, as a spray or dust, used for destroying fungi.
  • defoliant — A defoliant is a chemical used on trees and plants to make all their leaves fall off. Defoliants are especially used in war to remove protection from an enemy.
  • insecticide — a substance or preparation used for killing insects.
  • weedkiller — a herbicide.
All 6 Synonyms of ddt

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