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单词 generation
释义 gen·er·a·tion
\ˌjenəˈrāshən\ noun
(-s)
Etymology: Middle English generacioun, from Middle French generation, from Latin generation-, generatio, from generatus + -ion-, -io -ion
1.
 a. : a body of men, animals, or plants having a common parent or parents and constituting a single degree or step in the line of descent from an ancestor
  < five generations are shown in this family portrait >
  < its surface enriched with the … carcasses of hundreds of generations of buffalo — B.K.Sandwell >
  < studied a bacterial culture through 60 generations >
 b.
  (1) : the whole number of human beings born and living contemporaneously
   < our generation has seen immense changes >
   < his work affected the life and thought of later generations >
  (2) : a particular category of individuals born and living contemporaneously
   < inspired … a whole generation of theoreticians — Newsweek >
   < long after that generation of scholars had passed away — G.B.Shaw >
   < uses the vocabulary of his philosophic generation — John Dewey >
   < the present generation of insects appears to have developed immunity to the spray >
  (3) : the average span of time variously computed and varying according to cultural and other conditions between the birth of parents and that of their children
   < among primitive peoples twenty years may make a generation >
   < a generation … is roughly equal to the mean age of mothers at the birth of their daughters — Demographic Yearbook >
   < fifty years constitutes roughly a working lifetime, a period covering two generations — Arthur Geddes >
   < the cornerstone of the moral system … for generations — Joe Alvin >
  (4) : a group of individuals having contemporaneously a status (as that of students in a school) which each one holds only for a limited period
   < repeated by generation after generation of pupils — H.G.G.Herklots >
  (5) : a type or class of objects derived or developed from an earlier type
   < the Air Force's new generation of powerful supersonic fighters — Kenneth Koyen >
2.
 a. : the act or process of producing offspring : procreation
  < the organs of generation >
 b. : origination by some mathematical, chemical, or other process : production, formation
  < the generation of heat >
  < the generation of sounds >
 specifically : the formation of a geometrical figure by the motion of some other figure
  < the generation of a line by a point >
 c. : the process of coming into being : genesis, development, rise
  < the spontaneous generation of these churches — Oscar Handlin >
  < factors in the generation of income — G.V.Cox >
3. obsolete : race, kind, breed, stock, family
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更新时间:2025/3/13 3:55:27