Définition Delta | dictionnaire anglais définition synonymes Reverso

Collins

delta  


      n  
1    the fourth letter in the Greek alphabet (<GDelta> or <Gdelta>), a consonant transliterated as d  
2    an object resembling a capital delta in shape  
3    cap when part of name   the flat alluvial area at the mouth of some rivers where the mainstream splits up into several distributaries  
the Mississippi Delta     
4      (Maths)   a finite increment in a variable  
     (C16: via Latin from Greek, of Semitic origin; compare Hebrew daleth)  
  deltaic  
  deltic      adj  


Delta  
      n  
1    foll by the genitive case of a specified constellation   usually the fourth brightest star in a constellation  
2    any of a group of U.S. launch vehicles used to put unmanned satellites into orbit  
3      (Communications)   a code word for the letter d  
delta connection  
      n   a connection used in a three-phase electrical system in which three elements in series form a triangle, the supply being input and output at the three junctions  
   Compare       star connection  
delta iron  
      n   an allotrope of iron that exists between 1400°C and the melting point of iron and has the same structure as alpha iron  
delta particle  
      n     (Physics)   a very short-lived hyperon  
delta ray  
      n   a particle, esp. an electron, ejected from matter by ionizing radiation  
delta rhythm   , wave  
      n     (Physiol)   the normal electrical activity of the cerebral cortex during deep sleep, occurring at a frequency of 1 to 4 hertz and detectable with an electroencephalograph  
   See also       brain wave  
delta stock  
      n   any of the fourth rank of active securities on the Stock Exchange. Market makers need not display prices of these securities continuously and any prices displayed are taken only as an indication rather than an offer to buy or sell  
delta wing  
      n   a triangular sweptback aircraft wing  
Kronecker delta  
      n     (Maths)   a function of two variables, i and j, that has a value of zero unless i = j, when it has a value of unity,   (Symbol)    <Gdelta>ij  
     (named after Leopold Kronecker (1823--91), German mathematician)  
Dictionnaire anglais Collins English definition-Thesaurus  
Collins
Delta  
      n  
1    foll by the genitive case of a specified constellation   usually the fourth brightest star in a constellation  
2    any of a group of U.S. launch vehicles used to put unmanned satellites into orbit  
3      (Communications)   a code word for the letter d  


delta  
      n  
1    the fourth letter in the Greek alphabet (<GDelta> or <Gdelta>), a consonant transliterated as d  
2    an object resembling a capital delta in shape  
3    cap when part of name   the flat alluvial area at the mouth of some rivers where the mainstream splits up into several distributaries  
the Mississippi Delta     
4      (Maths)   a finite increment in a variable  
     (C16: via Latin from Greek, of Semitic origin; compare Hebrew daleth)  
  deltaic  
  deltic      adj  
delta connection  
      n   a connection used in a three-phase electrical system in which three elements in series form a triangle, the supply being input and output at the three junctions  
   Compare       star connection  
delta iron  
      n   an allotrope of iron that exists between 1400°C and the melting point of iron and has the same structure as alpha iron  
delta particle  
      n     (Physics)   a very short-lived hyperon  
delta ray  
      n   a particle, esp. an electron, ejected from matter by ionizing radiation  
delta rhythm   , wave  
      n     (Physiol)   the normal electrical activity of the cerebral cortex during deep sleep, occurring at a frequency of 1 to 4 hertz and detectable with an electroencephalograph  
   See also       brain wave  
delta stock  
      n   any of the fourth rank of active securities on the Stock Exchange. Market makers need not display prices of these securities continuously and any prices displayed are taken only as an indication rather than an offer to buy or sell  
delta wing  
      n   a triangular sweptback aircraft wing  
Kronecker delta  
      n     (Maths)   a function of two variables, i and j, that has a value of zero unless i = j, when it has a value of unity,   (Symbol)    <Gdelta>ij  
     (named after Leopold Kronecker (1823--91), German mathematician)  

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